| 1 |
Jeff and Digits |
Codeforces |
|
Codeforces Round #204 (Div. 2) |
1 |
| 2 |
Han Solo and Lazer Gun |
Codeforces |
|
Codeforces Round #291 (Div. 2) |
1 |
| 3 |
Relational Operator |
UVA |
|
|
1 |
| 4 |
Simple Equations |
UVA |
|
|
1 |
| 5 |
Tricky Sum |
Codeforces |
|
Educational Codeforces Round 1 |
1 |
| 6 |
Vanya and Books |
Codeforces |
|
Codeforces Round #308 (Div. 2) |
1 |
| 7 |
Fox and Number Game |
Codeforces |
|
Codeforces Round #228 (Div. 2) |
1 |
| 8 |
Add Two numbers |
A2 Online Judge |
|
|
1 |
| 9 |
Sphere |
URI |
|
|
1 |
| 10 |
Fedya and Maths |
Codeforces |
|
Codeforces Round #260 (Div. 2) |
1 |
| 11 |
Bachgold Problem |
Codeforces |
|
Codeforces Round #388 (Div. 2) |
1 |
| 12 |
Chips |
Codeforces |
|
Codeforces Beta Round #75 (Div. 2 Only) |
1 |
| 13 |
Pasha and Stick |
Codeforces |
|
Codeforces Round #337 (Div. 2) |
1 |
| 14 |
Kyoya and Photobooks |
Codeforces |
|
Codeforces Round #309 (Div. 2) |
1 |
| 15 |
Soldier and Bananas |
Codeforces |
|
Codeforces Round #304 (Div. 2) |
1 |
| 16 |
Play with Dates |
SPOJ |
|
|
1 |
| 17 |
Even Odds |
Codeforces |
|
Codeforces Round #188 (Div. 2) |
1 |
| 18 |
The Large Family |
Live Archive |
2013 |
South Pacific |
1 |
| 19 |
Simple Product |
URI |
|
|
1 |
| 20 |
Vasya and Petya's Game |
Codeforces |
|
Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) |
1 |
| 21 |
Random Teams |
Codeforces |
|
Codeforces Round #273 (Div. 2) |
1 |
| 22 |
Factorial Frequencies |
UVA |
|
|
1 |
| 23 |
Godsend |
Codeforces |
|
Codeforces Round #429 (Div. 2) |
1 |
| 24 |
Domino |
Codeforces |
|
Codeforces Round #205 (Div. 2) |
1 |
| 25 |
Theatre Square |
Codeforces |
|
Codeforces Beta Round #1 |
1 |
| 26 |
Jzzhu and Sequences |
Codeforces |
|
Codeforces Round #257 (Div. 2) |
1 |
| 27 |
Arpa’s hard exam and Mehrdad’s naive cheat |
Codeforces |
|
Codeforces Round #383 (Div. 2) |
1 |
| 28 |
Round House |
Codeforces |
|
Codeforces Round #346 (Div. 2) |
1 |
| 29 |
Elephant |
Codeforces |
|
Codeforces Round #340 (Div. 2) |
1 |
| 30 |
Drazil and Date |
Codeforces |
|
Codeforces Round #292 (Div. 2) |
1 |
| 31 |
Save Luke |
Codeforces |
|
AIM Tech Round (Div. 2) |
1 |
| 32 |
Array fill I |
URI |
|
|
1 |
| 33 |
Soldier and Cards |
Codeforces |
|
Codeforces Round #304 (Div. 2) |
1 |
| 34 |
Simple Calculate |
URI |
|
|
1 |
| 35 |
The number of positions |
Codeforces |
|
Codeforces Beta Round #92 (Div. 2 Only) |
1 |
| 36 |
Hello |
A2 Online Judge |
|
|
1 |
| 37 |
New Year Candles |
Codeforces |
|
Good Bye 2013 |
1 |
| 38 |
Area |
URI |
|
|
1 |
| 39 |
Panoramix's Prediction |
Codeforces |
|
Codeforces Beta Round #69 (Div. 2 Only) |
1 |
| 40 |
Playing With Balls |
SPOJ |
|
|
1 |
| 41 |
Simple Game |
Codeforces |
|
Codeforces Round #316 (Div. 2) |
1 |
| 42 |
Dreamoon and Stairs |
Codeforces |
|
Codeforces Round #272 (Div. 2) |
1 |
| 43 |
Drinks |
Codeforces |
|
Codeforces Round #126 (Div. 2) |
1 |
| 44 |
Triangle |
Codeforces |
|
Codeforces Beta Round #6 (Div. 2 Only) |
1 |
| 45 |
Maximum Clique |
ZOJ |
|
|
1 |
| 46 |
Caisa and Pylons |
Codeforces |
|
Codeforces Round #264 (Div. 2) |
1 |
| 47 |
FANCY NUMBERS |
SPOJ |
|
|
1 |
| 48 |
Lucky Numbers |
Codeforces |
|
Experimental Educational Round: VolBIT Formulas Blitz |
1 |
| 49 |
Hashmat the Brave Warrior |
UVA |
|
|
1 |
| 50 |
Infinite Sequence |
Codeforces |
|
Codeforces Round #353 (Div. 2) |
1 |
| 51 |
Vanya and Cards |
Codeforces |
|
Codeforces Round #235 (Div. 2) |
1 |
| 52 |
Simple Sum |
URI |
|
|
1 |
| 53 |
Expression |
Codeforces |
|
Codeforces Round #274 (Div. 2) |
1 |
| 54 |
DDD |
URI |
|
|
1 |
| 55 |
Fuel Spent |
URI |
|
|
1 |
| 56 |
Meeting of Old Friends |
Codeforces |
|
Codeforces Round #371 (Div. 2) |
1 |
| 57 |
Parallelepiped |
Codeforces |
|
Codeforces Round #138 (Div. 2) |
1 |
| 58 |
Divisibility by Eight |
Codeforces |
|
Codeforces Round #306 (Div. 2) |
1 |
| 59 |
Spreadsheet |
Codeforces |
|
Codeforces Beta Round #1 |
1 |
| 60 |
Lovely Palindromes |
Codeforces |
|
Codeforces Round #360 (Div. 2) |
1 |
| 61 |
Young Physicist |
Codeforces |
|
Codeforces Beta Round #63 (Div. 2) |
1 |
| 62 |
Clock Hands |
UVA |
|
|
1 |
| 63 |
Professor GukiZ's Robot |
Codeforces |
|
Educational Codeforces Round 6 |
1 |
| 64 |
Hungry Sequence |
Codeforces |
|
Codeforces Round #191 (Div. 2) |
1 |
| 65 |
Drazil and Factorial |
Codeforces |
|
Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) |
1 |
| 66 |
Calculating Function |
Codeforces |
|
Codeforces Round #277 (Div. 2) |
1 |
| 67 |
Sasha and Sticks |
Codeforces |
|
Codeforces Round #425 (Div. 2) |
1 |
| 68 |
Salary with Bonus |
URI |
|
|
1 |
| 69 |
Amr and Pins |
Codeforces |
|
Codeforces Round #287 (Div. 2) |
1 |
| 70 |
Shaass and Oskols |
Codeforces |
|
Codeforces Round #178 (Div. 2) |
1 |
| 71 |
Fibonacci Numbers |
TJU |
|
|
1 |
| 72 |
Dreamoon and WiFi |
Codeforces |
|
Codeforces Round #272 (Div. 2) |
1 |
| 73 |
T-primes |
Codeforces |
|
Codeforces Round #142 (Div. 2) |
1 |
| 74 |
Cut Ribbon |
Codeforces |
|
Codeforces Round #119 (Div. 2) |
1 |
| 75 |
Complicated GCD |
Codeforces |
|
Codeforces Round #347 (Div. 2) |
1 |
| 76 |
Little Elephant and Bits |
Codeforces |
|
Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) |
1 |
| 77 |
Why this kolaveri di |
SPOJ |
|
|
1 |
| 78 |
Insomnia cure |
Codeforces |
|
Codeforces Round #105 (Div. 2) |
1 |
| 79 |
Game |
Codeforces |
|
Rockethon 2015 |
1 |
| 80 |
Initial Bet |
Codeforces |
|
Codeforces Round #273 (Div. 2) |
1 |
| 81 |
Add them twice |
A2 Online Judge |
|
|
1 |
| 82 |
Bachelor Arithmetic |
Live Archive |
2007 |
Asia - Dhaka |
1 |
| 83 |
Minimum Difficulty |
Codeforces |
|
Codeforces Round #283 (Div. 2) |
1 |
| 84 |
Prime or Not |
SPOJ |
|
|
1 |
| 85 |
Distance Between Two Points |
URI |
|
|
1 |
| 86 |
Dima and Friends |
Codeforces |
|
Codeforces Round #167 (Div. 2) |
1 |
| 87 |
The Eternal Immortality |
Codeforces |
|
Codeforces Round #439 (Div. 2) |
1 |
| 88 |
Design Tutorial: Learn from Math |
Codeforces |
|
Codeforces Round #270 |
1 |
| 89 |
Fraction |
Codeforces |
|
Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) |
1 |
| 90 |
Carmichael Numbers |
UVA |
|
|
1 |
| 91 |
A and B and Team Training |
Codeforces |
|
Codeforces Round #294 (Div. 2) |
1 |
| 92 |
HOW MANY GAMES |
SPOJ |
|
|
1 |
| 93 |
Difference |
URI |
|
|
1 |
| 94 |
Wizards' Duel |
Codeforces |
|
Codeforces Round #327 (Div. 2) |
1 |
| 95 |
Playing with Paper |
Codeforces |
|
Codeforces Round #296 (Div. 2) |
1 |
| 96 |
I'm bored with life |
Codeforces |
|
Codeforces Round #422 (Div. 2) |
1 |
| 97 |
Vanya and Lanterns |
Codeforces |
|
Codeforces Round #280 (Div. 2) |
1 |
| 98 |
Cifera |
Codeforces |
|
Codeforces Beta Round #86 (Div. 2 Only) |
1 |
| 99 |
Die Roll |
Codeforces |
|
Codeforces Beta Round #9 (Div. 2 Only) |
1 |
| 100 |
Buttons |
Codeforces |
|
Codeforces Round #164 (Div. 2) |
1 |
| 101 |
The Monster |
Codeforces |
|
Codeforces Round #406 (Div. 2) |
1 |
| 102 |
Gerald's Hexagon |
Codeforces |
|
Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) |
1 |
| 103 |
Toy Army |
Codeforces |
|
Codeforces Beta Round #72 (Div. 2 Only) |
1 |
| 104 |
Anastasia and pebbles |
Codeforces |
|
Codeforces Round #407 (Div. 2) |
1 |
| 105 |
Domino piling |
Codeforces |
|
Codeforces Beta Round #47 |
1 |
| 106 |
To Carry or not to Carry |
UVA |
|
|
1 |
| 107 |
Olesya and Rodion |
Codeforces |
|
Codeforces Round #324 (Div. 2) |
1 |
| 108 |
Roommate Agreement |
SPOJ |
|
|
1 |
| 109 |
N-Factorful |
SPOJ |
|
|
1 |
| 110 |
Time Conversion |
URI |
|
|
1 |
| 111 |
Duff in Love |
Codeforces |
|
Codeforces Round #326 (Div. 2) |
1 |
| 112 |
Watchmen |
Codeforces |
|
Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) |
1 |
| 113 |
Two Buttons |
Codeforces |
|
Codeforces Round #295 (Div. 2) |
1 |
| 114 |
Vanya and Table |
Codeforces |
|
Codeforces Round #308 (Div. 2) |
1 |
| 115 |
Watermelon |
Codeforces |
|
Codeforces Beta Round #4 (Div. 2 Only) |
1 |
| 116 |
Taymyr is calling you |
Codeforces |
|
Codeforces Round #395 (Div. 2) |
1 |
| 117 |
Simple Math |
A2 Online Judge |
|
|
1 |
| 118 |
Touch of Venom |
SPOJ |
|
|
1 |
| 119 |
Dragons |
Codeforces |
|
Codeforces Round #142 (Div. 2) |
1 |
| 120 |
Tetrahedron |
Codeforces |
|
Codeforces Round #113 (Div. 2) |
1 |
| 121 |
GCD |
UVA |
|
|
1 |
| 122 |
Prime Generator |
SPOJ |
|
|
1 |
| 123 |
Prime Distance |
UVA |
|
|
1 |
| 124 |
Average 2 |
URI |
|
|
1 |
| 125 |
The Monster and the Squirrel |
Codeforces |
|
Codeforces Round #328 (Div. 2) |
1 |
| 126 |
Perfect Permutation |
Codeforces |
|
Codeforces Round #144 (Div. 2) |
1 |
| 127 |
Fancy Fence |
Codeforces |
|
Codeforces Round #165 (Div. 2) |
1 |
| 128 |
Double Cola |
Codeforces |
|
Yandex.Algorithm 2011 Qualification 2 |
1 |
| 129 |
Little Elephant and Function |
Codeforces |
|
Codeforces Round #136 (Div. 2) |
2 |
| 130 |
Faulty Odometer |
TJU |
|
|
2 |
| 131 |
Straight <<A>> |
Codeforces |
|
Codeforces Round #415 (Div. 2) |
2 |
| 132 |
PRIMITIVEROOTS |
SPOJ |
|
|
2 |
| 133 |
Anton and Fairy Tale |
Codeforces |
|
Codeforces Round #404 (Div. 2) |
2 |
| 134 |
Divisibility |
Codeforces |
|
Experimental Educational Round: VolBIT Formulas Blitz |
2 |
| 135 |
Vanya and Food Processor |
Codeforces |
|
Codeforces Round #355 (Div. 2) |
2 |
| 136 |
Ciel and Flowers |
Codeforces |
|
Codeforces Round #190 (Div. 2) |
2 |
| 137 |
Frugal Search |
Live Archive |
2006 |
North America - Mid-Central USA |
2 |
| 138 |
New Year Permutation |
Codeforces |
|
Good Bye 2014 |
2 |
| 139 |
Matrix Multiplication |
PKU |
|
|
2 |
| 140 |
Increase and Decrease |
Codeforces |
|
Codeforces Round #151 (Div. 2) |
2 |
| 141 |
Mafia |
Codeforces |
|
Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) |
2 |
| 142 |
Coconuts, Revisited |
UVA |
|
|
2 |
| 143 |
Ebony and Ivory |
Codeforces |
|
Manthan, Codefest 16 |
2 |
| 144 |
Hacking Cypher |
Codeforces |
|
Codeforces Round #279 (Div. 2) |
2 |
| 145 |
Archer |
Codeforces |
|
Codeforces Round #185 (Div. 2) |
2 |
| 146 |
Queries on a String |
Codeforces |
|
Educational Codeforces Round 1 |
2 |
| 147 |
GCD Table |
Codeforces |
|
Codeforces Round #323 (Div. 1) & Codeforces Round #323 (Div. 2) |
2 |
| 148 |
Covered Path |
Codeforces |
|
Codeforces Round #298 (Div. 2) |
2 |
| 149 |
Restoring Painting |
Codeforces |
|
Codeforces Round #353 (Div. 2) |
2 |
| 150 |
Prime Matrix |
Codeforces |
|
Codeforces Round #166 (Div. 2) |
2 |
| 151 |
Pouring Rain |
Codeforces |
|
Codeforces Round #349 (Div. 2) |
2 |
| 152 |
Factory |
Codeforces |
|
Codeforces Round #276 (Div. 2) |
2 |
| 153 |
Little Dima and Equation |
Codeforces |
|
Codeforces Round #262 (Div. 2) |
2 |
| 154 |
New Year Book Reading |
Codeforces |
|
Good Bye 2014 |
2 |
| 155 |
Mishka and trip |
Codeforces |
|
Codeforces Round #365 (Div. 2) |
2 |
| 156 |
Soldier and Number Game |
Codeforces |
|
Codeforces Round #304 (Div. 2) |
2 |
| 157 |
Opposites Attract |
Codeforces |
|
Codeforces Beta Round #95 (Div. 2) |
2 |
| 158 |
Plus and Square Root |
Codeforces |
|
Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) |
2 |
| 159 |
Simple Addition |
UVA |
|
|
2 |
| 160 |
Help Vasilisa the Wise 2 |
Codeforces |
|
Codeforces Round #102 (Div. 2) |
2 |
| 161 |
Marbles |
UVA |
|
|
2 |
| 162 |
Arpa’s obvious problem and Mehrdad’s terrible solution |
Codeforces |
|
Codeforces Round #383 (Div. 2) |
2 |
| 163 |
Another Problem on Strings |
Codeforces |
|
Codeforces Round #112 (Div. 2) |
2 |
| 164 |
Little Artem and Presents |
Codeforces |
|
Codeforces Round #348 (VK Cup 2016 Round 2, Div. 2 Edition) |
2 |
| 165 |
EVEN COUNT |
SPOJ |
|
|
2 |
| 166 |
Pride |
Codeforces |
|
Codeforces Round #446 (Div. 1) & Codeforces Round #446 (Div. 2) |
2 |
| 167 |
Two Bags of Potatoes |
Codeforces |
|
Codeforces Round #148 (Div. 2) |
2 |
| 168 |
Position in Fraction |
Codeforces |
|
Codeforces Round #450 (Div. 2) |
2 |
| 169 |
Rational Resistance |
Codeforces |
|
Codeforces Round #200 (Div. 1) & Codeforces Round #200 (Div. 2) |
2 |
| 170 |
Fixed Points |
Codeforces |
|
Codeforces Round #201 (Div. 2) |
2 |
| 171 |
Vasily the Bear and Triangle |
Codeforces |
|
Codeforces Round #195 (Div. 2) |
2 |
| 172 |
Hexagons! |
Codeforces |
|
Experimental Educational Round: VolBIT Formulas Blitz |
2 |
| 173 |
The World is a Theatre |
Codeforces |
|
Codeforces Beta Round #95 (Div. 2) |
2 |
| 174 |
Lever |
Codeforces |
|
Codeforces Round #221 (Div. 2) |
2 |
| 175 |
Pythagorean Triples |
Codeforces |
|
Codeforces Round #368 (Div. 2) |
2 |
| 176 |
Drazil and His Happy Friends |
Codeforces |
|
Codeforces Round #292 (Div. 1) & Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) & Codeforces Round #292 (Div. 2) |
2 |
| 177 |
Searching the Graph |
SPOJ Poland |
|
|
2 |
| 178 |
Kyoya and Colored Balls |
Codeforces |
|
Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) |
2 |
| 179 |
Taxes |
Codeforces |
|
Codeforces Round #382 (Div. 2) & Codeforces Round #382 (Div. 1) |
2 |
| 180 |
Yaroslav and Permutations |
Codeforces |
|
Codeforces Round #179 (Div. 2) |
2 |
| 181 |
Triangular numbers |
Codeforces |
|
Codeforces Beta Round #44 (Div. 2) |
2 |
| 182 |
Simple Molecules |
Codeforces |
|
Codeforces Round #200 (Div. 2) |
2 |
| 183 |
24 Game |
Codeforces |
|
Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) |
2 |
| 184 |
Adding Digits |
Codeforces |
|
Codeforces Round #158 (Div. 2) |
2 |
| 185 |
Hexadecimal's Numbers |
Codeforces |
|
Codeforces Beta Round #9 (Div. 2 Only) |
2 |
| 186 |
GRADE POINT AVERAGE |
SPOJ |
|
|
2 |
| 187 |
Tourist's Notes |
Codeforces |
|
Codeforces Round #300 |
2 |
| 188 |
Little Elephant and Magic Square |
Codeforces |
|
Codeforces Round #157 (Div. 2) |
2 |
| 189 |
Leha and Function |
Codeforces |
|
Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) |
2 |
| 190 |
The Wall |
Codeforces |
|
Codeforces Round #198 (Div. 2) |
2 |
| 191 |
Vladik and fractions |
Codeforces |
|
Codeforces Round #384 (Div. 2) |
2 |
| 192 |
Infinite Sequence |
Codeforces |
|
Educational Codeforces Round 7 |
2 |
| 193 |
Saitama Destroys Hotel |
Codeforces |
|
Codeforces Round #336 (Div. 2) |
2 |
| 194 |
Alice and Bob |
Codeforces |
|
Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) |
2 |
| 195 |
Tennis Championship |
Codeforces |
|
Codeforces Round #382 (Div. 2) & Codeforces Round #382 (Div. 1) |
2 |
| 196 |
Painting Eggs |
Codeforces |
|
Codeforces Round #173 (Div. 2) |
2 |
| 197 |
Bear and Strings |
Codeforces |
|
Codeforces Round #226 (Div. 2) |
2 |
| 198 |
Permutations |
UVA |
|
|
2 |
| 199 |
Okabe and Banana Trees |
Codeforces |
|
Codeforces Round #420 (Div. 2) |
2 |
| 200 |
Let's Watch Football |
Codeforces |
|
Codeforces Round #123 (Div. 2) |
3 |
| 201 |
SPIRAL RUN |
SPOJ |
|
|
3 |
| 202 |
Nuts |
Codeforces |
|
Codeforces Round #236 (Div. 2) |
3 |
| 203 |
Pythagorean Theorem II |
Codeforces |
|
Codeforces Round #183 (Div. 2) |
3 |
| 204 |
Cows and Primitive Roots |
Codeforces |
|
Codeforces Round #174 (Div. 2) |
3 |
| 205 |
Simple Arithmetics |
Live Archive |
2000 |
Europe - Central |
3 |
| 206 |
Valera and Contest |
Codeforces |
|
Codeforces Round #216 (Div. 2) |
3 |
| 207 |
Noldbach problem |
Codeforces |
|
Codeforces Beta Round #17 |
3 |
| 208 |
The Meaningless Game |
Codeforces |
|
Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) |
3 |
| 209 |
DNA Alignment |
Codeforces |
|
Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) |
3 |
| 210 |
Arpa and an exam about geometry |
Codeforces |
|
Codeforces Round #432 (Div. 2, based on IndiaHacks Final Round 2017) |
3 |
| 211 |
Music |
Codeforces |
|
Codeforces Round #315 (Div. 2) |
3 |
| 212 |
Easy Sum-2 |
A2 Online Judge |
|
|
3 |
| 213 |
Moore's Law |
Codeforces |
|
Experimental Educational Round: VolBIT Formulas Blitz |
3 |
| 214 |
Lucky Permutation Triple |
Codeforces |
|
Codeforces Round #183 (Div. 1) & Codeforces Round #183 (Div. 2) |
3 |
| 215 |
XOR and OR |
Codeforces |
|
Codeforces Round #173 (Div. 2) |
3 |
| 216 |
Arpa's loud Owf and Mehrdad's evil plan |
Codeforces |
|
Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) |
3 |
| 217 |
Year of University Entrance |
Codeforces |
|
VK Cup 2017 - Qualification 1 |
3 |
| 218 |
Bear and Prime Numbers |
Codeforces |
|
Codeforces Round #226 (Div. 2) |
3 |
| 219 |
Non-square Equation |
Codeforces |
|
Codeforces Round #144 (Div. 2) |
3 |
| 220 |
Geometry Problem |
Live Archive |
2009 |
Asia - Amritapuri |
3 |
| 221 |
Azooz |
SPOJ |
|
|
3 |
| 222 |
Routine Problem |
Codeforces |
|
Codeforces Round #196 (Div. 2) |
3 |
| 223 |
Catch Me If You Can |
SPOJ |
|
|
3 |
| 224 |
Memory and De-Evolution |
Codeforces |
|
Codeforces Round #370 (Div. 2) |
3 |
| 225 |
FUN WITH LETTERS |
SPOJ |
|
|
3 |
| 226 |
Ternary Logic |
Codeforces |
|
Codeforces Beta Round #97 (Div. 2) |
3 |
| 227 |
Rook, Bishop and King |
Codeforces |
|
Codeforces Round #217 (Div. 2) |
3 |
| 228 |
Vanya and Scales |
Codeforces |
|
Codeforces Round #308 (Div. 2) |
3 |
| 229 |
Tiling with Hexagons |
Codeforces |
|
Codeforces Round #133 (Div. 2) |
3 |
| 230 |
K-Periodic Array |
Codeforces |
|
Codeforces Round #218 (Div. 2) |
3 |
| 231 |
Little Girl and Maximum XOR |
Codeforces |
|
Codeforces Round #169 (Div. 2) |
3 |
| 232 |
Triangle |
Codeforces |
|
Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) |
3 |
| 233 |
A Trivial Problem |
Codeforces |
|
Manthan, Codefest 16 |
3 |
| 234 |
Permutation |
Codeforces |
|
Codeforces Round #209 (Div. 2) |
3 |
| 235 |
Replace To Make Regular Bracket Sequence |
Codeforces |
|
Educational Codeforces Round 4 |
3 |
| 236 |
Polycarpus' Dice |
Codeforces |
|
Codeforces Round #298 (Div. 2) |
3 |
| 237 |
Burger |
UVA |
|
|
3 |
| 238 |
A Problem about Polyline |
Codeforces |
|
Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] |
3 |
| 239 |
Numbers |
Codeforces |
|
Codeforces Beta Round #13 |
3 |
| 240 |
Powerful array |
Codeforces |
|
Yandex.Algorithm 2011 Round 2 |
3 |
| 241 |
Primes or Palindromes? |
Codeforces |
|
Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) |
3 |
| 242 |
Bicycle Race |
Codeforces |
|
Codeforces Round #346 (Div. 2) |
3 |
| 243 |
Quiz |
Codeforces |
|
Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) |
3 |
| 244 |
LUCKYNINE |
SPOJ |
|
|
3 |
| 245 |
Guest From the Past |
Codeforces |
|
Codeforces Round #342 (Div. 2) |
3 |
| 246 |
Pashmak and Buses |
Codeforces |
|
Codeforces Round #261 (Div. 2) |
3 |
| 247 |
Testing Pants for Sadness |
Codeforces |
|
Codeforces Beta Round #80 (Div. 1 Only) & Codeforces Beta Round #80 (Div. 2 Only) |
3 |
| 248 |
Modular Equations |
Codeforces |
|
Codeforces Round #282 (Div. 2) |
3 |
| 249 |
Exams |
Codeforces |
|
Codeforces Round #122 (Div. 2) |
3 |
| 250 |
Masha and geometric depression |
Codeforces |
|
Codeforces Round #407 (Div. 2) |
3 |
| 251 |
N - DIGIT NUMBERS |
SPOJ |
|
|
3 |
| 252 |
Sereja and Contests |
Codeforces |
|
Codeforces Round #235 (Div. 2) |
3 |
| 253 |
Do you want a date? |
Codeforces |
|
Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) |
3 |
| 254 |
The least round way |
Codeforces |
|
Codeforces Beta Round #2 |
3 |
| 255 |
Plant |
Codeforces |
|
Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) |
3 |
| 256 |
Unusual Product |
Codeforces |
|
Codeforces Round #238 (Div. 2) & Codeforces Round #238 (Div. 1) |
3 |
| 257 |
New Year Table |
Codeforces |
|
Codeforces Round #100 |
3 |
| 258 |
Median |
Codeforces |
|
Codeforces Round #113 (Div. 2) |
3 |
| 259 |
Guess Your Way Out! |
Codeforces |
|
Codeforces Round #287 (Div. 2) |
3 |
| 260 |
Dreamoon and Sums |
Codeforces |
|
Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) |
3 |
| 261 |
Jzzhu and Chocolate |
Codeforces |
|
Codeforces Round #257 (Div. 1) & Codeforces Round #257 (Div. 2) |
3 |
| 262 |
Robbers' watch |
Codeforces |
|
Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) |
3 |
| 263 |
ZEROES IN RANGE V2 |
SPOJ |
|
|
3 |
| 264 |
Maximum Value |
Codeforces |
|
Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) |
3 |
| 265 |
Polynomial-time Reductions |
Live Archive |
2008 |
Asia - Hefei |
3 |
| 266 |
Vasya and Robot |
Codeforces |
|
Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) |
3 |
| 267 |
Common Divisors |
Codeforces |
|
Codeforces Round #117 (Div. 2) |
3 |
| 268 |
Fox Dividing Cheese |
Codeforces |
|
Codeforces Round #218 (Div. 2) |
3 |
| 269 |
Vasya and the Bus |
Codeforces |
|
Codeforces Round #120 (Div. 2) |
3 |
| 270 |
Andrey and Problem |
Codeforces |
|
Codeforces Round #253 (Div. 1) & Codeforces Round #253 (Div. 2) |
3 |
| 271 |
Mashmokh and Tokens |
Codeforces |
|
Codeforces Round #240 (Div. 2) |
3 |
| 272 |
Levko and Permutation |
Codeforces |
|
Codeforces Round #210 (Div. 2) |
3 |
| 273 |
Increasing Sequence |
Codeforces |
|
Codeforces Beta Round #11 |
3 |
| 274 |
Gerald and Giant Chess |
Codeforces |
|
Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) |
4 |
| 275 |
A Student's Dream |
Codeforces |
|
Codeforces Beta Round #58 |
4 |
| 276 |
Progress Bar |
Codeforces |
|
Codeforces Beta Round #65 (Div. 2) |
4 |
| 277 |
Olympic Medal |
Codeforces |
|
Codeforces Round #132 (Div. 2) |
4 |
| 278 |
Subtractions |
Codeforces |
|
Codeforces Testing Round #5 |
4 |
| 279 |
Tourist Problem |
Codeforces |
|
Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) |
4 |
| 280 |
Divisible by Seven |
Codeforces |
|
Codeforces Round #221 (Div. 1) & Codeforces Round #221 (Div. 2) |
4 |
| 281 |
About Bacteria |
Codeforces |
|
Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) |
4 |
| 282 |
DZY Loves Physics |
Codeforces |
|
Codeforces Round #254 (Div. 1) & Codeforces Round #254 (Div. 2) |
4 |
| 283 |
Ralph And His Magic Field |
Codeforces |
|
Codeforces Round #447 (Div. 2) |
4 |
| 284 |
Division into Teams |
Codeforces |
|
Codeforces Round #106 (Div. 2) |
4 |
| 285 |
Inna and Huge Candy Matrix |
Codeforces |
|
Codeforces Round #234 (Div. 2) |
4 |
| 286 |
The Big Race |
Codeforces |
|
Codeforces Round #328 (Div. 2) |
4 |
| 287 |
Two Semiknights Meet |
Codeforces |
|
Codeforces Round #212 (Div. 2) |
4 |
| 288 |
Magical Array |
Codeforces |
|
Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) |
4 |
| 289 |
View Angle |
Codeforces |
|
Codeforces Round #159 (Div. 2) |
4 |
| 290 |
After Training |
Codeforces |
|
Codeforces Round #123 (Div. 2) |
4 |
| 291 |
Indivisibility |
Codeforces |
|
Experimental Educational Round: VolBIT Formulas Blitz |
4 |
| 292 |
Find Pair |
Codeforces |
|
Codeforces Round #111 (Div. 2) |
4 |
| 293 |
Round Table Knights |
Codeforces |
|
Codeforces Beta Round #65 (Div. 2) |
4 |
| 294 |
Spongebob and Squares |
Codeforces |
|
Codeforces Round #332 (Div. 2) |
4 |
| 295 |
As Fast As Possible |
Codeforces |
|
Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) |
4 |
| 296 |
Rebus |
Codeforces |
|
Codeforces Round #347 (Div. 1) & Codeforces Round #347 (Div. 2) |
4 |
| 297 |
Hometask |
Codeforces |
|
Codeforces Round #131 (Div. 2) |
4 |
| 298 |
Binary Number |
Codeforces |
|
Codeforces Beta Round #75 (Div. 2 Only) |
4 |
| 299 |
The Intriguing Obsession |
Codeforces |
|
Codeforces Round #439 (Div. 2) |
4 |
| 300 |
Quantity of Strings |
Codeforces |
|
Codeforces Round #107 (Div. 1) & Codeforces Round #107 (Div. 2) |
4 |
| 301 |
Fox And Jumping |
Codeforces |
|
Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) |
4 |
| 302 |
Petya and Square |
Codeforces |
|
Codeforces Beta Round #85 (Div. 2 Only) |
4 |
| 303 |
Pipeline |
Codeforces |
|
Codeforces Round #176 (Div. 2) |
4 |
| 304 |
Mischievous Mess Makers |
Codeforces |
|
CROC 2016 - Elimination Round |
4 |
| 305 |
MUH and House of Cards |
Codeforces |
|
Codeforces Round #269 (Div. 2) |
4 |
| 306 |
Predict Outcome of the Game |
Codeforces |
|
Codeforces Round #258 (Div. 2) |
4 |
| 307 |
Om Nom and Spiders |
Codeforces |
|
Zepto Code Rush 2014 |
4 |
| 308 |
Marathon |
Codeforces |
|
Codeforces Round #237 (Div. 2) |
4 |
| 309 |
Ilya And The Tree |
Codeforces |
|
Codeforces Round #430 (Div. 2) |
4 |
| 310 |
Alternating Sum |
Codeforces |
|
Tinkoff Internship Warmup Round 2018 and Codeforces Round #475 (Div. 1) & Tinkoff Internship Warmup Round 2018 and Codeforces Round #475 (Div. 2) |
4 |
| 311 |
Vanya and Triangles |
Codeforces |
|
Codeforces Round #308 (Div. 2) |
4 |
| 312 |
Depression |
Codeforces |
|
Codeforces Beta Round #69 (Div. 2 Only) |
4 |
| 313 |
Wonder Room |
Codeforces |
|
Codeforces Round #266 (Div. 2) |
4 |
| 314 |
Ancient Berland Circus |
Codeforces |
|
Codeforces Beta Round #1 |
4 |
| 315 |
Remainders Game |
Codeforces |
|
Codeforces Round #360 (Div. 1) & Codeforces Round #360 (Div. 2) |
4 |
| 316 |
Multipliers |
Codeforces |
|
Codeforces Round #338 (Div. 2) |
4 |
| 317 |
Tavas and Karafs |
Codeforces |
|
Codeforces Round #299 (Div. 2) & Codeforces Round #299 (Div. 1) |
4 |
| 318 |
Magic Formulas |
Codeforces |
|
Codeforces Round #242 (Div. 2) |
4 |
| 319 |
Ciel and Robot |
Codeforces |
|
Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) |
4 |
| 320 |
Pasha and Phone |
Codeforces |
|
Codeforces Round #330 (Div. 2) |
4 |
| 321 |
Elevator |
Codeforces |
|
School Regional Team Contest, Saratov, 2011 |
4 |
| 322 |
Three Logos |
Codeforces |
|
Codeforces Round #322 (Div. 2) |
4 |
| 323 |
Friends and Presents |
Codeforces |
|
Codeforces Round #275 (Div. 2) |
4 |
| 324 |
Plate Game |
Codeforces |
|
Codeforces Round #124 (Div. 2) |
4 |
| 325 |
Find Maximum |
Codeforces |
|
Codeforces Round #205 (Div. 2) |
4 |
| 326 |
Trains |
Codeforces |
|
Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) |
4 |
| 327 |
Count Good Substrings |
Codeforces |
|
Codeforces Round #258 (Div. 2) |
4 |
| 328 |
Forecast |
Codeforces |
|
Experimental Educational Round: VolBIT Formulas Blitz |
4 |
| 329 |
Magic Five |
Codeforces |
|
Codeforces Round #191 (Div. 2) |
4 |
| 330 |
Marco and GCD Sequence |
Codeforces |
|
Codeforces Round #447 (Div. 2) |
4 |
| 331 |
Face the mate |
SPOJ |
|
|
4 |
| 332 |
Escape |
Codeforces |
|
Codeforces Round #105 (Div. 2) |
4 |
| 333 |
Pair of Numbers |
Codeforces |
|
Codeforces Round #209 (Div. 2) |
4 |
| 334 |
Magical Boxes |
Codeforces |
|
Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) |
4 |
| 335 |
Counting Rhombi |
Codeforces |
|
Codeforces Round #119 (Div. 2) |
4 |
| 336 |
Chilly Willy |
Codeforces |
|
Codeforces Round #152 (Div. 2) |
4 |
| 337 |
Square |
Codeforces |
|
Codeforces Round #122 (Div. 2) |
4 |
| 338 |
Jeff and Rounding |
Codeforces |
|
Codeforces Round #204 (Div. 1) & Codeforces Round #204 (Div. 2) |
4 |
| 339 |
Weird Fence |
UVA |
|
|
4 |
| 340 |
Mike and Chocolate Thieves |
Codeforces |
|
Codeforces Round #361 (Div. 2) |
4 |
| 341 |
Colliders |
Codeforces |
|
Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) |
4 |
| 342 |
Cookies |
Codeforces |
|
Codeforces Beta Round #64 |
4 |
| 343 |
Permutations |
Codeforces |
|
Rockethon 2015 |
4 |
| 344 |
Divisibility |
Codeforces |
|
Testing Round #12 |
4 |
| 345 |
Winnie-the-Pooh and honey |
Codeforces |
|
School Regional Team Contest, Saratov, 2011 |
4 |
| 346 |
Dima and Sequence |
Codeforces |
|
Codeforces Round #167 (Div. 2) |
4 |
| 347 |
Limit |
Codeforces |
|
Codeforces Round #124 (Div. 2) |
4 |
| 348 |
Cableway |
Codeforces |
|
Codeforces Beta Round #74 (Div. 2 Only) |
4 |
| 349 |
Flying Saucer Segments |
Codeforces |
|
Codeforces Round #140 (Div. 1) & Codeforces Round #140 (Div. 2) |
4 |
| 350 |
Toy Sum |
Codeforces |
|
Codeforces Round #238 (Div. 2) & Codeforces Round #238 (Div. 1) |
4 |
| 351 |
Directed Roads |
Codeforces |
|
Codeforces Round #369 (Div. 2) |
4 |
| 352 |
Hopscotch |
Codeforces |
|
Codeforces Round #101 (Div. 2) |
4 |
| 353 |
XOR Equation |
Codeforces |
|
8VC Venture Cup 2016 - Final Round |
4 |
| 354 |
Bag of mice |
Codeforces |
|
Codeforces Round #105 (Div. 2) |
4 |
| 355 |
Vanya and Computer Game |
Codeforces |
|
Codeforces Round #280 (Div. 2) |
4 |
| 356 |
Lucky Permutation |
Codeforces |
|
Codeforces Round #176 (Div. 1) & Codeforces Round #176 (Div. 2) |
4 |
| 357 |
Dreamoon and Sets |
Codeforces |
|
Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) |
4 |
| 358 |
Cylinder |
UVA |
|
|
4 |
| 359 |
Rectangle and Square |
Codeforces |
|
Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) |
5 |
| 360 |
Dima and Two Sequences |
Codeforces |
|
Codeforces Round #167 (Div. 2) & Codeforces Round #167 (Div. 1) |
5 |
| 361 |
CGCDSSQ |
Codeforces |
|
Bayan 2015 Contest Warm Up |
5 |
| 362 |
Xenia and Hamming |
Codeforces |
|
Codeforces Round #207 (Div. 1) & Codeforces Round #207 (Div. 2) |
5 |
| 363 |
Misha and Permutations Summation |
Codeforces |
|
Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) |
5 |
| 364 |
Help Farmer |
Codeforces |
|
Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) |
5 |
| 365 |
Elimination |
Codeforces |
|
RCC 2014 Warmup (Div. 2) |
5 |
| 366 |
Pretty Song |
Codeforces |
|
Codeforces Round #289 (Div. 2, ACM ICPC Rules) |
5 |
| 367 |
Careful teacher |
UVA |
|
|
5 |
| 368 |
Elevator |
Codeforces |
|
Codeforces Beta Round #88 |
5 |
| 369 |
Chess |
Codeforces |
|
School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) |
5 |
| 370 |
Jumping Jack |
Codeforces |
|
Codeforces Beta Round #11 |
5 |
| 371 |
Clique in the Divisibility Graph |
Codeforces |
|
VK Cup 2015 - Finals, online mirror |
5 |
| 372 |
Degenerate Matrix |
Codeforces |
|
Looksery Cup 2015 |
5 |
| 373 |
Ryouko's Memory Note |
Codeforces |
|
Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) |
5 |
| 374 |
Upgrading Array |
Codeforces |
|
Codeforces Round #236 (Div. 2) & Codeforces Round #236 (Div. 1) |
5 |
| 375 |
Square Subsets |
Codeforces |
|
Codeforces Round #448 (Div. 2) |
5 |
| 376 |
Continued Fractions |
Codeforces |
|
Codeforces Round #184 (Div. 2) |
5 |
| 377 |
Iahub and Permutations |
Codeforces |
|
Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) |
5 |
| 378 |
Chocolate |
Codeforces |
|
Codeforces Round #279 (Div. 2) |
5 |
| 379 |
Expensive Drink |
Live Archive |
2007 |
Asia - Beijing |
5 |
| 380 |
Special Task |
Codeforces |
|
ABBYY Cup 3.0 |
5 |
| 381 |
Malek Dance Club |
Codeforces |
|
Codeforces Round #189 (Div. 1) & Codeforces Round #189 (Div. 2) |
5 |
| 382 |
Sum |
Codeforces |
|
Codeforces Beta Round #46 (Div. 2) |
5 |
| 383 |
Accounting |
Codeforces |
|
Codeforces Beta Round #30 (Codeforces format) |
5 |
| 384 |
Hunting Digletts |
URI |
|
|
5 |
| 385 |
Cubical Planet |
Codeforces |
|
School Team Contest #1 (Winter Computer School 2010/11) |
5 |
| 386 |
Two Heaps |
Codeforces |
|
Codeforces Round #205 (Div. 2) |
5 |
| 387 |
Falling Anvils |
Codeforces |
|
Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only) |
5 |
| 388 |
Flea travel |
Codeforces |
|
Codeforces Beta Round #51 |
5 |
| 389 |
Array Game |
Live Archive |
2009 |
Asia - Tehran |
5 |
| 390 |
Moodular Arithmetic |
Codeforces |
|
Codeforces Round #334 (Div. 1) & Codeforces Round #334 (Div. 2) |
5 |
| 391 |
Chip 'n Dale Rescue Rangers |
Codeforces |
|
Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) |
5 |
| 392 |
Equation |
Codeforces |
|
Codeforces Alpha Round #20 (Codeforces format) |
5 |
| 393 |
Om Nom and Candies |
Codeforces |
|
ZeptoLab Code Rush 2015 |
5 |
| 394 |
Measuring Lengths in Baden |
Codeforces |
|
Codeforces Testing Round #2 |
5 |
| 395 |
Fibonacci-ish |
Codeforces |
|
Manthan, Codefest 16 |
5 |
| 396 |
Lengthening Sticks |
Codeforces |
|
Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) |
5 |
| 397 |
Prime Number |
Codeforces |
|
Codeforces Round #209 (Div. 2) |
5 |
| 398 |
Line |
Codeforces |
|
Codeforces Beta Round #7 |
5 |
| 399 |
Vitaly and Cycle |
Codeforces |
|
Codeforces Round #311 (Div. 2) |
5 |
| 400 |
Soldier and Traveling |
Codeforces |
|
Codeforces Round #304 (Div. 2) |
5 |
| 401 |
Rock-Paper-Scissors |
Codeforces |
|
Croc Champ 2012 - Round 1 |
5 |
| 402 |
Petya and His Friends |
Codeforces |
|
Codeforces Beta Round #61 (Div. 2) |
5 |
| 403 |
Anton and School - 2 |
Codeforces |
|
Codeforces Round #404 (Div. 2) |
5 |
| 404 |
Fox and Minimal path |
Codeforces |
|
Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) |
5 |
| 405 |
Polo the Penguin and XOR operation |
Codeforces |
|
Codeforces Round #177 (Div. 1) & Codeforces Round #177 (Div. 2) |
5 |
| 406 |
Find Color |
Codeforces |
|
Codeforces Beta Round #39 |
5 |
| 407 |
Not Wool Sequences |
Codeforces |
|
Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) |
5 |
| 408 |
Four Segments |
Codeforces |
|
Codeforces Beta Round #14 (Div. 2) |
5 |
| 409 |
Fancy Number |
Codeforces |
|
Codeforces Beta Round #89 (Div. 2) |
5 |
| 410 |
Symmetric and Transitive |
Codeforces |
|
Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) |
5 |
| 411 |
Valid Sets |
Codeforces |
|
Codeforces Round #277 (Div. 2) |
5 |
| 412 |
Datatypes |
Codeforces |
|
Codeforces Beta Round #83 (Div. 2 Only) |
5 |
| 413 |
Clear Symmetry |
Codeforces |
|
Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) |
5 |
| 414 |
Mike and Frog |
Codeforces |
|
Codeforces Round #305 (Div. 1) & Codeforces Round #305 (Div. 2) |
5 |
| 415 |
N-ARY TREE |
SPOJ |
|
|
5 |
| 416 |
Winter is here |
Codeforces |
|
Codeforces Round #428 (Div. 2) |
5 |
| 417 |
Colorful Field |
Codeforces |
|
Codeforces Beta Round #71 |
5 |
| 418 |
Kyoya and Permutation |
Codeforces |
|
Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) |
5 |
| 419 |
Board Game |
Codeforces |
|
VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) |
5 |
| 420 |
Making Sequences is Fun |
Codeforces |
|
Codeforces Round #219 (Div. 2) |
5 |
| 421 |
Lucky Tree |
Codeforces |
|
Codeforces Beta Round #84 (Div. 1 Only) & Codeforces Beta Round #84 (Div. 2 Only) |
5 |
| 422 |
Friends |
Codeforces |
|
Codeforces Beta Round #76 (Div. 2 Only) |
5 |
| 423 |
Maxim and Restaurant |
Codeforces |
|
Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) |
6 |
| 424 |
Party |
Codeforces |
|
Codeforces Beta Round #23 |
6 |
| 425 |
Demiurges Play Again |
Codeforces |
|
Codeforces Round #300 |
6 |
| 426 |
Random Task |
Codeforces |
|
Codeforces Round #247 (Div. 2) |
6 |
| 427 |
Functions |
A2 Online Judge |
|
|
6 |
| 428 |
ZEROES IN RANGE |
SPOJ |
|
|
6 |
| 429 |
Unusual Sequences |
Codeforces |
|
Codeforces Round #450 (Div. 2) |
6 |
| 430 |
International Olympiad |
Codeforces |
|
CROC 2016 - Final Round [Private, For Onsite Finalists Only] |
6 |
| 431 |
Number Transformation II |
Codeforces |
|
Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) |
6 |
| 432 |
The Elder Trolls IV: Oblivon |
Codeforces |
|
Codeforces Beta Round #66 |
6 |
| 433 |
Vanya and Field |
Codeforces |
|
Codeforces Round #280 (Div. 2) |
6 |
| 434 |
Hit Ball |
Codeforces |
|
Codeforces Round #128 (Div. 2) |
6 |
| 435 |
Partial Sums |
Codeforces |
|
Codeforces Round #138 (Div. 1) & Codeforces Round #138 (Div. 2) |
6 |
| 436 |
Mathematical Analysis Rocks! |
Codeforces |
|
Codeforces Round #116 (Div. 2, ACM-ICPC Rules) |
6 |
| 437 |
Points |
Codeforces |
|
All-Ukrainian School Olympiad in Informatics |
6 |
| 438 |
ANYTHING FOR ATTENDANCE |
SPOJ |
|
|
6 |
| 439 |
ZS and The Birthday Paradox |
Codeforces |
|
Codeforces Round #369 (Div. 2) |
6 |
| 440 |
A Heap of Heaps |
Codeforces |
|
Codeforces Round #300 |
6 |
| 441 |
Stadium and Games |
Codeforces |
|
MemSQL start[c]up Round 1 |
6 |
| 442 |
Platforms |
Codeforces |
|
Codeforces Beta Round #18 (Div. 2 Only) |
6 |
| 443 |
Pluses everywhere |
Codeforces |
|
Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) |
6 |
| 444 |
Triangles |
Codeforces |
|
Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) |
6 |
| 445 |
Golden System |
Codeforces |
|
MemSQL Start[c]UP 2.0 - Round 2 |
6 |
| 446 |
Doctor |
Codeforces |
|
Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) |
6 |
| 447 |
Sum |
Codeforces |
|
Codeforces Round #159 (Div. 2) |
6 |
| 448 |
Lucky Subsequence |
Codeforces |
|
Codeforces Round #104 (Div. 1) & Codeforces Round #104 (Div. 2) |
6 |
| 449 |
CUBE ROOT |
SPOJ |
|
|
6 |
| 450 |
Harry Potter and Three Spells |
Codeforces |
|
Codeforces Beta Round #60 |
6 |
| 451 |
Rectangle Puzzle II |
Codeforces |
|
Codeforces Round #183 (Div. 1) & Codeforces Round #183 (Div. 2) |
6 |
| 452 |
Little Elephant and LCM |
Codeforces |
|
Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) |
6 |
| 453 |
Insertion Sort |
Codeforces |
|
Codeforces Round #212 (Div. 2) |
6 |
| 454 |
Let's Play Osu! |
Codeforces |
|
Codeforces Round #146 (Div. 1) & Codeforces Round #146 (Div. 2) |
6 |
| 455 |
Below the Diagonal |
Codeforces |
|
Codeforces Round #163 (Div. 2) |
6 |
| 456 |
Wallpaper |
Codeforces |
|
Codeforces Beta Round #99 (Div. 2) |
6 |
| 457 |
Playing with Permutations |
Codeforces |
|
Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) |
6 |
| 458 |
Game on Tree |
Codeforces |
|
Codeforces Round #172 (Div. 1) & Codeforces Round #172 (Div. 2) |
6 |
| 459 |
3-cycles |
Codeforces |
|
Codeforces Beta Round #40 (Div. 2) |
6 |
| 460 |
CHOCOLATES |
SPOJ |
|
|
6 |
| 461 |
Flea |
Codeforces |
|
Codeforces Beta Round #32 (Div. 2, Codeforces format) |
6 |
| 462 |
Collision Detection |
Live Archive |
2012 |
North America - Mid-Atlantic USA & North America - Southeast USA |
6 |
| 463 |
GukiZ and Binary Operations |
Codeforces |
|
Codeforces Round #307 (Div. 2) |
6 |
| 464 |
Array |
Codeforces |
|
Codeforces Beta Round #53 |
6 |
| 465 |
Jeopardy! |
Codeforces |
|
Coder-Strike 2014 - Round 2 |
6 |
| 466 |
Hot Bath |
Codeforces |
|
Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) |
6 |
| 467 |
Watching Fireworks is Fun |
Codeforces |
|
Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) |
6 |
| 468 |
Bear and Polynomials |
Codeforces |
|
VK Cup 2016 - Round 1 |
6 |
| 469 |
Number Busters |
Codeforces |
|
Codeforces Round #224 (Div. 2) |
6 |
| 470 |
Table |
Codeforces |
|
Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) |
6 |
| 471 |
Average Score |
Codeforces |
|
Yandex.Algorithm Open 2011 Qualification 1 |
6 |
| 472 |
Problem About Equation |
Codeforces |
|
VK Cup 2012 Round 3 (Unofficial Div. 2 Edition) |
6 |
| 473 |
Vasily the Bear and Fly |
Codeforces |
|
Codeforces Round #195 (Div. 2) |
6 |
| 474 |
A rectangle |
Codeforces |
|
Experimental Educational Round: VolBIT Formulas Blitz |
6 |
| 475 |
Police Patrol |
Codeforces |
|
Codeforces Round #244 (Div. 2) |
6 |
| 476 |
Prizes |
A2 Online Judge |
|
|
6 |
| 477 |
Fibonacci 2.0 |
A2 Online Judge |
|
|
6 |
| 478 |
Design Space |
URI |
|
|
6 |
| 479 |
Karen and Test |
Codeforces |
|
Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) |
6 |
| 480 |
Magic Trick |
Codeforces |
|
MemSQL Start[c]UP 2.0 - Round 1 |
6 |
| 481 |
Mushroom Scientists |
Codeforces |
|
Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) |
6 |
| 482 |
Longest Subsequence |
Codeforces |
|
Educational Codeforces Round 9 |
6 |
| 483 |
LIS of Sequence |
Codeforces |
|
Codeforces Round #277 (Div. 2) |
6 |
| 484 |
GAMING ARENA |
SPOJ |
|
|
6 |
| 485 |
Mr. Bender and Square |
Codeforces |
|
Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) |
6 |
| 486 |
Guess That Car! |
Codeforces |
|
Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) |
6 |
| 487 |
Parallel Expectations |
Live Archive |
2001 |
Asia - Tehran |
6 |
| 488 |
Hack it! |
Codeforces |
|
Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) |
7 |
| 489 |
Reflection |
Codeforces |
|
Yandex.Algorithm 2011 Round 2 |
7 |
| 490 |
Vasily the Bear and Beautiful Strings |
Codeforces |
|
Codeforces Round #195 (Div. 2) |
7 |
| 491 |
Plus and xor |
Codeforces |
|
All-Ukrainian School Olympiad in Informatics |
7 |
| 492 |
Sum of Remainders |
Codeforces |
|
Educational Codeforces Round 5 |
7 |
| 493 |
Squares |
Codeforces |
|
Codeforces Beta Round #92 (Div. 1 Only) & Codeforces Beta Round #92 (Div. 2 Only) |
7 |
| 494 |
Follow Traffic Rules |
Codeforces |
|
Codeforces Beta Round #5 |
7 |
| 495 |
Furlo and Rublo and Game |
Codeforces |
|
Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) |
7 |
| 496 |
Sequence of points |
Codeforces |
|
Codeforces Beta Round #24 |
7 |
| 497 |
Little Artem and Random Variable |
Codeforces |
|
VK Cup 2016 - Round 2 |
7 |
| 498 |
Maxim and Matrix |
Codeforces |
|
Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) |
7 |
| 499 |
First Digit Law |
Codeforces |
|
Codeforces Beta Round #50 |
7 |
| 500 |
Blocked Points |
Codeforces |
|
Codeforces Round #230 (Div. 1) & Codeforces Round #230 (Div. 2) |
7 |
| 501 |
Case of a Top Secret |
Codeforces |
|
Codeforces Round #310 (Div. 1) |
7 |
| 502 |
Square Table |
Codeforces |
|
RCC 2014 Warmup (Div. 2) & RCC 2014 Warmup (Div. 1) |
7 |
| 503 |
Powers |
Live Archive |
2004 |
Africa/Middle East - South Africa |
7 |
| 504 |
Little Elephant and Furik and Rubik |
Codeforces |
|
Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) |
7 |
| 505 |
Analyzing Polyline |
Codeforces |
|
Codeforces Round #123 (Div. 2) |
7 |
| 506 |
Turn |
Codeforces |
|
Experimental Educational Round: VolBIT Formulas Blitz |
7 |
| 507 |
String Mark |
Codeforces |
|
Codeforces Round #448 (Div. 2) |
7 |
| 508 |
The Water Taps |
SPOJ |
|
|
7 |
| 509 |
Subway Innovation |
Codeforces |
|
Codeforces Round #218 (Div. 2) |
7 |
| 510 |
Curious Array |
Codeforces |
|
Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) |
7 |
| 511 |
Playlist |
Codeforces |
|
Codeforces Round #164 (Div. 2) |
7 |
| 512 |
Big Maximum Sum |
Codeforces |
|
Codeforces Beta Round #67 (Div. 2) |
7 |
| 513 |
Minimum Modular |
Codeforces |
|
Codeforces Round #183 (Div. 1) & Codeforces Round #183 (Div. 2) |
7 |
| 514 |
Disposition |
Codeforces |
|
Codeforces Beta Round #46 (Div. 2) |
7 |
| 515 |
Bribes |
Codeforces |
|
Bubble Cup 8 - Finals [Online Mirror] |
7 |
| 516 |
Bamboo Partition |
Codeforces |
|
Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) |
7 |
| 517 |
Rat Kwesh and Cheese |
Codeforces |
|
Codeforces Round #341 (Div. 2) |
7 |
| 518 |
Simple Skewness |
Codeforces |
|
8VC Venture Cup 2016 - Elimination Round |
7 |
| 519 |
Idempotent functions |
Codeforces |
|
VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) |
7 |
| 520 |
Devu and Birthday Celebration |
Codeforces |
|
Codeforces Round #251 (Div. 2) |
7 |
| 521 |
Intersection |
Codeforces |
|
Codeforces Alpha Round #21 (Codeforces format) |
7 |
| 522 |
Blackboard Fibonacci |
Codeforces |
|
Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) |
7 |
| 523 |
The Last Fight Between Human and AI |
Codeforces |
|
Codeforces Round #354 (Div. 2) |
7 |
| 524 |
Hexagons |
Codeforces |
|
Codeforces Round #338 (Div. 2) |
7 |
| 525 |
Pairs of Numbers |
Codeforces |
|
Codeforces Testing Round #3 |
7 |
| 526 |
On Corruption and Numbers |
Codeforces |
|
Codeforces Round #232 (Div. 2) |
7 |
| 527 |
Repaintings |
Codeforces |
|
Codeforces Beta Round #39 |
7 |
| 528 |
Laser |
Codeforces |
|
Codeforces Beta Round #15 |
7 |
| 529 |
Binary Table |
Codeforces |
|
CROC 2016 - Final Round [Private, For Onsite Finalists Only] |
7 |
| 530 |
Restoring Numbers |
Codeforces |
|
Codeforces Round #289 (Div. 2, ACM ICPC Rules) |
7 |
| 531 |
On Sum of Fractions |
Codeforces |
|
Codeforces Round #232 (Div. 1) & Codeforces Round #232 (Div. 2) |
7 |
| 532 |
Empire Strikes Back |
Codeforces |
|
Codeforces Round #181 (Div. 2) |
7 |
| 533 |
Mother of Dragons |
Codeforces |
|
Codeforces Round #428 (Div. 2) |
8 |
| 534 |
The Sum of the k-th Powers |
Codeforces |
|
Educational Codeforces Round 7 |
8 |
| 535 |
Cube Problem |
Codeforces |
|
Croc Champ 2013 - Round 2 |
8 |
| 536 |
Strange Sorting |
Codeforces |
|
Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) |
8 |
| 537 |
Anniversary |
Codeforces |
|
Codeforces Round #140 (Div. 1) & Codeforces Round #140 (Div. 2) |
8 |
| 538 |
Hamming Distance |
Codeforces |
|
Codeforces Round #122 (Div. 1) & Codeforces Round #122 (Div. 2) |
8 |
| 539 |
Wizards and Numbers |
Codeforces |
|
Codeforces Round #114 (Div. 1) & Codeforces Round #114 (Div. 2) |
8 |
| 540 |
The Race |
Codeforces |
|
School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) |
8 |
| 541 |
Ladies' Shop |
Codeforces |
|
Codeforces Round #176 (Div. 1) |
8 |
| 542 |
Vectors |
Codeforces |
|
Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) |
8 |
| 543 |
Cows and Cool Sequences |
Codeforces |
|
Codeforces Round #174 (Div. 1) |
8 |
| 544 |
Vasya and Polynomial |
Codeforces |
|
Codeforces Round #281 (Div. 2) |
8 |
| 545 |
Bear in the Field |
Codeforces |
|
Codeforces Round #226 (Div. 2) |
8 |
| 546 |
Three Horses |
Codeforces |
|
Codeforces Round #166 (Div. 2) |
8 |
| 547 |
Headquarters |
Codeforces |
|
Croc Champ 2012 - Final |
8 |
| 548 |
Olya and Graph |
Codeforces |
|
Codeforces Round #184 (Div. 2) |
8 |
| 549 |
Martian Luck |
Codeforces |
|
Codeforces Round #133 (Div. 2) |
8 |
| 550 |
Cow Tennis Tournament |
Codeforces |
|
Codeforces Round #174 (Div. 1) |
8 |
| 551 |
Numbers |
Codeforces |
|
Codeforces Beta Round #72 (Div. 1 Only) |
8 |
| 552 |
Memory and Casinos |
Codeforces |
|
Codeforces Round #370 (Div. 2) |
8 |
| 553 |
Smart Cheater |
Codeforces |
|
Codeforces Round #107 (Div. 1) & Codeforces Round #107 (Div. 2) |
8 |
| 554 |
Little Elephant and Broken Sorting |
Codeforces |
|
Codeforces Round #157 (Div. 1) |
8 |
| 555 |
Multicolored Marbles |
Codeforces |
|
VK Cup 2012 Finals, Practice Session |
8 |
| 556 |
Ghd |
Codeforces |
|
Codeforces Round #213 (Div. 1) |
8 |
| 557 |
Cowslip Collections |
Codeforces |
|
CROC 2016 - Elimination Round |
8 |
| 558 |
Unsolvable |
Codeforces |
|
Codeforces Round #139 (Div. 2) |
8 |
| 559 |
BerDonalds |
Codeforces |
|
Codeforces Round #163 (Div. 2) |
8 |
| 560 |
GCD Table |
Codeforces |
|
Codeforces Round #196 (Div. 1) |
8 |
| 561 |
Morning run |
Codeforces |
|
Croc Champ 2013 - Finals (online version, Div. 1) |
8 |
| 562 |
Lannion Visit |
A2 Online Judge |
|
|
8 |
| 563 |
Positions in Permutations |
Codeforces |
|
Codeforces Round #175 (Div. 2) |
8 |
| 564 |
Capture Valerian |
Codeforces |
|
Codeforces Beta Round #57 (Div. 2) |
8 |
| 565 |
Collisions |
Codeforces |
|
Codeforces Beta Round #34 (Div. 2) |
8 |
| 566 |
Dima and Magic Guitar |
Codeforces |
|
Codeforces Round #214 (Div. 2) |
8 |
| 567 |
More Queries to Array... |
Codeforces |
|
Codeforces Round #163 (Div. 2) |
8 |
| 568 |
Interval Cubing |
Codeforces |
|
Codeforces Round #185 (Div. 1) |
8 |
| 569 |
Misha and Palindrome Degree |
Codeforces |
|
Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) |
8 |
| 570 |
Math Homework |
A2 Online Judge |
|
|
8 |
| 571 |
Summer Homework |
Codeforces |
|
ABBYY Cup 3.0 |
8 |
| 572 |
Fibonacci Sums |
Codeforces |
|
Codeforces Beta Round #93 (Div. 1 Only) |
8 |
| 573 |
Hyperdrive |
Codeforces |
|
School Team Contest #2 (Winter Computer School 2010/11) |
8 |
| 574 |
Plumber |
Codeforces |
|
Codeforces Beta Round #87 (Div. 1 Only) & Codeforces Beta Round #87 (Div. 2 Only) |
8 |
| 575 |
Divisibility Rules |
Codeforces |
|
Codeforces Round #116 (Div. 2, ACM-ICPC Rules) |
9 |
| 576 |
Flatland Fencing |
Codeforces |
|
Codeforces Round #109 (Div. 1) |
9 |
| 577 |
Square Equation Roots |
Codeforces |
|
Codeforces Beta Round #47 |
9 |
| 578 |
Present for Vitalik the Philatelist |
Codeforces |
|
Codeforces Round #325 (Div. 1) |
9 |
| 579 |
Berland Square |
Codeforces |
|
Codeforces Beta Round #39 |
9 |
| 580 |
Task processing |
Codeforces |
|
2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) |
9 |
| 581 |
Visit of the Great |
Codeforces |
|
Codeforces Round #118 (Div. 1) |
9 |
| 582 |
Cowboys |
Codeforces |
|
VK Cup 2012 Finals (unofficial online-version) |
9 |
| 583 |
Appleman and Complicated Task |
Codeforces |
|
Codeforces Round #263 (Div. 1) |
9 |
| 584 |
Theft of Blueprints |
Codeforces |
|
Codeforces Round #193 (Div. 2) |
9 |
| 585 |
Table |
Codeforces |
|
Unknown Language Round #1 |
9 |
| 586 |
Subarray Cuts |
Codeforces |
|
Rockethon 2015 |
9 |
| 587 |
Winning Strategy |
Codeforces |
|
Yandex.Algorithm 2011 Finals |
9 |
| 588 |
Tetris revisited |
Codeforces |
|
Yandex.Algorithm 2011 Round 2 |
9 |
| 589 |
Ksusha and Square |
Codeforces |
|
Croc Champ 2013 - Round 2 |
9 |
| 590 |
Endless Matrix |
Codeforces |
|
Codeforces Round #152 (Div. 1) |
9 |
| 591 |
LCM |
Codeforces |
|
Surprise Language Round #6 |
9 |
| 592 |
Red and Black Tree |
Codeforces |
|
Codeforces Round #221 (Div. 1) |
9 |
| 593 |
Fibonacci Number |
Codeforces |
|
Codeforces Round #122 (Div. 1) |
9 |
| 594 |
Wizards and Bets |
Codeforces |
|
Codeforces Round #114 (Div. 1) |
9 |
| 595 |
Morrowindows |
Codeforces |
|
Codeforces Beta Round #66 |
9 |
| 596 |
Savior |
Codeforces |
|
Codeforces Beta Round #56 |
9 |
| 597 |
Beautiful Function |
Codeforces |
|
Codeforces Round #329 (Div. 2) |
9 |
| 598 |
Not Quick Transformation |
Codeforces |
|
Codeforces Beta Round #88 |
9 |
| 599 |
Lust |
Codeforces |
|
Codeforces Round #446 (Div. 1) |
9 |
| 600 |
Yet Another Number Sequence |
Codeforces |
|
Codeforces Round #230 (Div. 1) & Codeforces Round #230 (Div. 2) |
9 |
| 601 |
New York Hotel |
Codeforces |
|
Testing Round #11 |
9 |
| 602 |
Sereja and Cinema |
Codeforces |
|
Codeforces Round #223 (Div. 1) |
9 |
| 603 |
Tractor College |
Codeforces |
|
Codeforces Round #126 (Div. 2) |
9 |
| 604 |
Flags |
Codeforces |
|
Codeforces Beta Round #76 (Div. 1 Only) |
9 |
| 605 |
Surprise me! |
Codeforces |
|
Codeforces Round #415 (Div. 1) |
9 |
| 606 |
PE Lesson |
Codeforces |
|
ABBYY Cup 3.0 |
9 |
| 607 |
Mushroom Gnomes |
Codeforces |
|
Codeforces Beta Round #56 |
9 |
| 608 |
Optimal Point |
Codeforces |
|
Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) |
9 |
| 609 |
Gambling Nim |
Codeforces |
|
CROC 2016 - Final Round [Private, For Onsite Finalists Only] |
9 |
| 610 |
Archer's Shot |
Codeforces |
|
Codeforces Beta Round #70 (Div. 2) |
9 |
| 611 |
Horse Races |
Codeforces |
|
Codeforces Beta Round #77 (Div. 1 Only) & Codeforces Beta Round #77 (Div. 2 Only) |
9 |
| 612 |
Extraordinarily Nice Numbers |
Codeforces |
|
Unknown Language Round #2 |
9 |
| 613 |
Ivan the Fool VS Gorynych the Dragon |
Codeforces |
|
School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) |
9 |
| 614 |
Ruminations on Ruminants |
Codeforces |
|
Codeforces Round #334 (Div. 1) |
9 |
| 615 |
Two Sets |
Codeforces |
|
Codeforces Round #153 (Div. 1) |
9 |
| 616 |
Summer Homework |
Codeforces |
|
ABBYY Cup 3.0 |
9 |
| 617 |
Physical Education and Buns |
Codeforces |
|
Codeforces Round #231 (Div. 2) |
9 |
| 618 |
Strange town |
Codeforces |
|
Codeforces Beta Round #41 |
9 |
| 619 |
Lostborn |
Codeforces |
|
Codeforces Beta Round #76 (Div. 1 Only) |
9 |
| 620 |
Four Divisors |
Codeforces |
|
Educational Codeforces Round 12 |
9 |
| 621 |
Little Elephant and Triangle |
Codeforces |
|
Codeforces Round #136 (Div. 1) |
9 |
| 622 |
Strange Radiation |
Codeforces |
|
Codeforces Round #425 (Div. 2) |
9 |
| 623 |
Ciel and Flipboard |
Codeforces |
|
Codeforces Round #190 (Div. 1) |
9 |
| 624 |
Rotatable Number |
Codeforces |
|
Codeforces Round #183 (Div. 1) |
9 |
| 625 |
Fox and Perfect Sets |
Codeforces |
|
Codeforces Round #228 (Div. 1) |
9 |
| 626 |
Polo the Penguin and Lucky Numbers |
Codeforces |
|
Codeforces Round #177 (Div. 1) |
9 |
| 627 |
Pixels |
Codeforces |
|
VK Cup 2012 Finals, Practice Session |
9 |
| 628 |
Rotation |
Codeforces |
|
Unknown Language Round #3 |
9 |
| 629 |
Friends |
Codeforces |
|
Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) |
9 |
| 630 |
Sign Posts |
Codeforces |
|
Codeforces Round #315 (Div. 1) |
9 |
| 631 |
Design Tutorial: Change the Goal |
Codeforces |
|
Codeforces Round #270 |
9 |
| 632 |
Journey |
Codeforces |
|
Codeforces Beta Round #53 |
9 |
| 633 |
Roland and Rose |
Codeforces |
|
Codeforces Round #262 (Div. 2) |
9 |
| 634 |
Superhero's Job |
Codeforces |
|
VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) |
9 |
| 635 |
Bitonix' Patrol |
Codeforces |
|
Codeforces Round #134 (Div. 1) |
9 |
| 636 |
Tetragon |
Codeforces |
|
Codeforces Beta Round #23 |
9 |
| 637 |
Fibonotci |
Codeforces |
|
Bubble Cup 8 - Finals [Online Mirror] |
9 |
| 638 |
Lesson Timetable |
Codeforces |
|
Codeforces Beta Round #37 |
9 |
| 639 |
Donkey and Stars |
Codeforces |
|
Codeforces Round #152 (Div. 1) |
9 |
| 640 |
Bear and Paradox |
Codeforces |
|
VK Cup 2016 - Round 1 |
9 |
| 641 |
Sasha Circle |
Codeforces |
|
Looksery Cup 2015 |
10 |
| 642 |
Jzzhu and Squares |
Codeforces |
|
Codeforces Round #257 (Div. 1) |
10 |
| 643 |
Interval Coloring |
Codeforces |
|
Unknown Language Round #3 |
10 |
| 644 |
Ants on a Circle |
Codeforces |
|
Educational Codeforces Round 10 |
10 |
| 645 |
Security System |
Codeforces |
|
Codeforces Beta Round #71 |
10 |
| 646 |
Chess |
Codeforces |
|
Codeforces Beta Round #53 |
10 |
| 647 |
Hamming Triples |
Codeforces |
|
Codeforces Round #238 (Div. 1) |
10 |
| 648 |
Birthday |
Codeforces |
|
Codeforces Beta Round #94 (Div. 1 Only) |
10 |
| 649 |
Lucky Interval |
Codeforces |
|
Codeforces Beta Round #84 (Div. 1 Only) |
10 |
| 650 |
Nephren Runs a Cinema |
Codeforces |
|
Codeforces Round #449 (Div. 1) |
10 |
| 651 |
Permanent |
Codeforces |
|
Codeforces Round #268 (Div. 1) |
10 |
| 652 |
DravDe saves the world |
Codeforces |
|
Codeforces Beta Round #28 (Codeforces format) |
10 |
| 653 |
Wisdom |
Live Archive |
2004 |
Africa/Middle East - South Africa |
10 |
| 654 |
Interesting Sequence |
Codeforces |
|
Codeforces Beta Round #39 |
10 |
| 655 |
Agricultural Archaeology |
Codeforces |
|
2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) |
10 |
| 656 |
Berland Traffic |
Codeforces |
|
Codeforces Testing Round #5 |
10 |
| 657 |
Days of Floral Colours |
Codeforces |
|
Codeforces Round #431 (Div. 1) |
10 |
| 658 |
Doodle Jump |
Codeforces |
|
Codeforces Round #201 (Div. 1) |
10 |
| 659 |
DZY Loves Games |
Codeforces |
|
Codeforces Round #255 (Div. 1) |
10 |
| 660 |
Counting Skyscrapers |
Codeforces |
|
MemSQL start[c]up Round 2 - online version |
10 |
| 661 |
Help Shrek and Donkey |
Codeforces |
|
Codeforces Beta Round #78 (Div. 1 Only) |
10 |
| 662 |
Long sequence |
Codeforces |
|
Yandex.Algorithm 2011 Round 2 |
10 |
| 663 |
Goshtasp, Vishtasp and Eidi |
Codeforces |
|
Unknown Language Round #2 |
10 |
| 664 |
Bingo! |
Codeforces |
|
MemSQL Start[c]UP 2.0 - Round 2 |
10 |
| 665 |
Berserk Robot |
Codeforces |
|
Codeforces Round #300 |
10 |
| 666 |
Sleeping |
Codeforces |
|
Codeforces Beta Round #86 (Div. 1 Only) |
10 |
| 667 |
DZY Loves Bridges |
Codeforces |
|
Codeforces Round #255 (Div. 1) |
10 |
| 668 |
BigFibonacci |
TopCoder |
|
TCO06 Sponsor 5 - Div1 hard] (9916) |
10 |
| 669 |
Lamps in a Line |
Codeforces |
|
Unknown Language Round #3 |
10 |
| 670 |
Flow Optimality |
Codeforces |
|
MemSQL Start[c]UP 2.0 - Round 2 |
10 |
| 671 |
Sequence Transformation |
Codeforces |
|
Codeforces Round #172 (Div. 1) |
10 |
| 672 |
Geometric Progressions |
Codeforces |
|
Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) |
10 |
| 673 |
Perpetual Motion Machine |
Codeforces |
|
Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) |
10 |
| 674 |
Mutation |
Codeforces |
|
All-Ukrainian School Olympiad in Informatics |
10 |
| 675 |
Olympic Games |
Codeforces |
|
Codeforces Round #235 (Div. 2) |
10 |
| 676 |
Gears |
Codeforces |
|
Codeforces Round #283 (Div. 1) |
10 |
| 677 |
Evil |
Codeforces |
|
Codeforces Round #192 (Div. 1) |
10 |
| 678 |
Oil |
Codeforces |
|
Unknown Language Round #2 |
10 |
| 679 |
Mod Mod Mod |
Codeforces |
|
Codeforces Round #445 (Div. 1, based on Technocup 2018 Elimination Round 3) |
10 |