Binary Search & Ternary Search
Problem Name Online Judge Year Contest Difficulty Level
1 Pyramids SPOJ 1
2 Kefa and Company Codeforces Codeforces Round #321 (Div. 2) 1
3 Solve It UVA 1
4 Prime Frequency UVA 1
5 Shake Shake Shaky SPOJ 1
6 Number of Ways Codeforces Codeforces Round #266 (Div. 2) 1
7 Monthly Expense PKU 1
8 Chloe and the sequence Codeforces Codeforces Round #384 (Div. 2) 1
9 Copying Books SPOJ 1
10 ABCDEF SPOJ 1
11 Touch of Venom SPOJ 1
12 4 Values whose Sum is 0 TJU 1
13 GCD LCM UVA 1
14 Pie SPOJ 1
15 Not a Triangle SPOJ 1
16 River Hopscotch PKU 1
17 Aggressive cows SPOJ 1
18 Interesting drink Codeforces Codeforces Round #367 (Div. 2) 1
19 Books Codeforces Codeforces Round #171 (Div. 2) 1
20 String it out SPOJ 1
21 Aggressive cows PKU 1
22 Binary Search Tree Live Archive 2010 Asia - Daejeon 1
23 4 values whose sum is 0 SPOJ 1
24 Hamster flight SPOJ 1
25 DZY Loves Chessboard Codeforces Codeforces Round #254 (Div. 2) 1
26 Exact Sum UVA 1
27 Rent your airplane and make money SPOJ 1
28 Eko SPOJ 1
29 Where is the Marble? UVA 1
30 Cable master PKU 1
31 Worms Codeforces Codeforces Round #271 (Div. 2) 1
32 Queries about less or equal elements Codeforces Educational Codeforces Round 2 1
33 Sphere in a tetrahedron SPOJ 1
34 K12 - Building Construction SPOJ 1
35 Ternary UVA 1
36 Vanya and Lanterns Codeforces Codeforces Round #280 (Div. 2) 1
37 Fill the Cisterns SPOJ 1
38 Help the soldier SPOJ 1
39 The Playboy Chimp UVA 1
40 Anton and Fairy Tale Codeforces Codeforces Round #404 (Div. 2) 2
41 Rank List Codeforces Codeforces Round #113 (Div. 2) 2
42 Another Problem on Strings Codeforces Codeforces Round #112 (Div. 2) 2
43 Copying Books UVA 2
44 Vasya and String Codeforces Codeforces Round #354 (Div. 2) 2
45 String Game Codeforces Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) 2
46 ICPC Scoreboard Live Archive 2007 Latin America - South America 2
47 K Best PKU 2
48 New Year and Rating Codeforces Good Bye 2016 2
49 Mummy Madness Live Archive 2011 World Finals - Orlando 2
50 Lucky Numbers (easy) Codeforces Codeforces Beta Round #77 (Div. 2 Only) 2
51 Prime Matrix Codeforces Codeforces Round #166 (Div. 2) 2
52 Crossed Ladders UVA 2
53 Hamburgers Codeforces Codeforces Round #218 (Div. 2) 2
54 Binary Search Tree SPOJ 2
55 Dropping tests PKU 2
56 Popes UVA 2
57 Burning Midnight Oil Codeforces Codeforces Round #112 (Div. 2) 2
58 Geometric Progression Codeforces Codeforces Round #Pi (Div. 2) 2
59 k-Multiple Free Set Codeforces Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) 2
60 Counting Kangaroos is Fun Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 2
61 Tourist's Notes Codeforces Codeforces Round #300 2
62 Multiplication Table Codeforces Codeforces Round #256 (Div. 2) 2
63 Moo University - Financial Aid PKU 2
64 Sagheer and Nubian Market Codeforces Codeforces Round #417 (Div. 2) 2
65 Mafia Codeforces Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) 2
66 Funny scales SPOJ 2
67 Chat Order Codeforces VK Cup 2016 - Qualification Round 1 2
68 Fill the Containers UVA 2
69 Drying PKU 2
70 Karen and Coffee Codeforces Codeforces Round #419 (Div. 2) 2
71 Meteors SPOJ 2
72 Distributing Ballot Boxes SPOJ 2
73 Points on Line Codeforces Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) 2
74 More Cowbell Codeforces Codeforces Round #334 (Div. 2) 2
75 Polo the Penguin and Matrix Codeforces Codeforces Round #177 (Div. 2) 2
76 Password Codeforces Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) 2
77 Median PKU 2
78 Chain Reaction Codeforces Codeforces Round #336 (Div. 1) & Codeforces Round #336 (Div. 2) 2
79 Roads Repair SPOJ 3
80 Mike and Feet Codeforces Codeforces Round #305 (Div. 1) & Codeforces Round #305 (Div. 2) 3
81 Quiz Codeforces Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) 3
82 Vasya and Basketball Codeforces Codeforces Round #281 (Div. 2) 3
83 Booking System Codeforces Codeforces Round #241 (Div. 2) 3
84 Primes on Interval Codeforces Codeforces Round #147 (Div. 2) 3
85 Trick or Treat SPOJ 3
86 Physics Practical Codeforces Codeforces Round #154 (Div. 2) 3
87 Fantastic Discovery SPOJ 3
88 Watto and Mechanism Codeforces Codeforces Round #291 (Div. 2) 3
89 Long Jumps Codeforces Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) 3
90 Cloud of Hashtags Codeforces Codeforces Round #401 (Div. 2) 3
91 Bubble Sort Graph Codeforces Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) 3
92 Through the Desert UVA 3
93 LLPS Codeforces Codeforces Round #127 (Div. 2) 3
94 Exams Codeforces Codeforces Round #377 (Div. 2) 3
95 Little Elephant and Array Codeforces Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2) 3
96 grace marks SPOJ 3
97 Bear and Blocks Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 3
98 Vasiliy's Multiset Codeforces Codeforces Round #367 (Div. 2) 3
99 Glasnici SPOJ 3
100 Telephone Lines PKU 3
101 Modified GCD Codeforces Codeforces Beta Round #67 (Div. 2) 3
102 Megacity Codeforces Codeforces Round #242 (Div. 2) 3
103 To Add or Not to Add Codeforces Codeforces Round #143 (Div. 2) 3
104 Alyona and Spreadsheet Codeforces Codeforces Round #401 (Div. 2) 3
105 Little Elephant and Interval Codeforces Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) 3
106 Hard Process Codeforces Educational Codeforces Round 11 3
107 Bear and Prime Numbers Codeforces Codeforces Round #226 (Div. 2) 3
108 Array Codeforces Codeforces Round #138 (Div. 2) 3
109 Eugeny and Play List Codeforces Codeforces Round #182 (Div. 2) 3
110 Maximum Value Codeforces Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) 3
111 Cow Acrobats PKU 3
112 ICPC Scoreboard SPOJ 3
113 Glass Carving Codeforces Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) 3
114 Funky Numbers Codeforces Codeforces Round #121 (Div. 2) 3
115 Towers of Hanoi UVA 3
116 Matrix PKU 3
117 Dress'em in Vests! Codeforces VK Cup 2012 Round 1 3
118 Present Codeforces Codeforces Round #262 (Div. 2) 3
119 Mashmokh and Tokens Codeforces Codeforces Round #240 (Div. 2) 3
120 Non-square Equation Codeforces Codeforces Round #144 (Div. 2) 3
121 Let's Watch Football Codeforces Codeforces Round #123 (Div. 2) 3
122 Grapevine UVA 3
123 Planets Codeforces Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) 4
124 Pair of Numbers Codeforces Codeforces Round #209 (Div. 2) 4
125 A and B and Lecture Rooms Codeforces Codeforces Round #294 (Div. 2) 4
126 Fight the Monster Codeforces Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) 4
127 Escape Codeforces Codeforces Round #105 (Div. 2) 4
128 Vanya and Computer Game Codeforces Codeforces Round #280 (Div. 2) 4
129 Queue Codeforces Codeforces Beta Round #75 (Div. 1 Only) & Codeforces Beta Round #75 (Div. 2 Only) 4
130 Find Pair Codeforces Codeforces Round #111 (Div. 2) 4
131 Garland PKU 4
132 Tennis Game Codeforces Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) 4
133 Tavas and Karafs Codeforces Codeforces Round #299 (Div. 2) & Codeforces Round #299 (Div. 1) 4
134 Friends and Presents Codeforces Codeforces Round #275 (Div. 2) 4
135 Longest k-Good Segment Codeforces Educational Codeforces Round 5 4
136 GukiZ hates Boxes Codeforces Codeforces Round #307 (Div. 2) 4
137 Alyona and a tree Codeforces Codeforces Round #381 (Div. 1) & Codeforces Round #381 (Div. 2) 4
138 Steps Codeforces Codeforces Round #108 (Div. 2) 4
139 MUH and House of Cards Codeforces Codeforces Round #269 (Div. 2) 4
140 Pasha and Phone Codeforces Codeforces Round #330 (Div. 2) 4
141 XK Segments Codeforces Codeforces Round #448 (Div. 2) 4
142 Petya and Divisors Codeforces Codeforces Beta Round #85 (Div. 1 Only) & Codeforces Beta Round #85 (Div. 2 Only) 4
143 New Year Snowmen Codeforces Codeforces Round #100 4
144 Civilization Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 4
145 Office Keys Codeforces Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) 4
146 Little Elephant and Cards Codeforces Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) 4
147 One-Dimensional Battle Ships Codeforces Codeforces Round #Pi (Div. 2) 4
148 Matchmaker Codeforces VK Cup 2012 Qualification Round 2 4
149 Pipeline Codeforces Codeforces Round #176 (Div. 2) 4
150 Robin Hood Codeforces Codeforces Round #352 (Div. 1) & Codeforces Round #352 (Div. 2) 4
151 Peter and Snow Blower Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 4
152 Well-known Numbers Codeforces Codeforces Round #139 (Div. 2) 4
153 Weakness and Poorness Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 4
154 Mike and Chocolate Thieves Codeforces Codeforces Round #361 (Div. 2) 4
155 Binary Number Codeforces Codeforces Beta Round #75 (Div. 2 Only) 4
156 Image Preview Codeforces Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) 4
157 Sereja and Prefixes Codeforces Codeforces Round #223 (Div. 1) & Codeforces Round #223 (Div. 2) 4
158 As Fast As Possible Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 4
159 Tree Requests Codeforces Codeforces Round #316 (Div. 2) 4
160 Ciel and Robot Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 4
161 String Manipulation 1.0 Codeforces VK Cup 2012 Qualification Round 2 4
162 Almost Arithmetical Progression Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) 4
163 Devu and his Brother Codeforces Codeforces Round #251 (Div. 2) 4
164 Skills Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 5
165 Making Sequences is Fun Codeforces Codeforces Round #219 (Div. 2) 5
166 The Bakery Codeforces Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) 5
167 Leaving Auction Codeforces Codeforces Round #388 (Div. 2) 5
168 Handshakes Codeforces Codeforces Round #298 (Div. 2) 5
169 Enduring Exodus Codeforces CROC 2016 - Elimination Round 5
170 Guilty --- to the kitchen! Codeforces Codeforces Beta Round #41 5
171 Degenerate Matrix Codeforces Looksery Cup 2015 5
172 Levko and Array Codeforces Codeforces Round #210 (Div. 1) & Codeforces Round #210 (Div. 2) 5
173 The Art of Dealing with ATM Codeforces VK Cup 2015 - Round 1 5
174 Strip Codeforces Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) 5
175 Friends and Subsequences Codeforces Codeforces Round #361 (Div. 2) 5
176 R2D2 and Droid Army Codeforces Codeforces Round #291 (Div. 2) 5
177 Yaroslav and Time Codeforces Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) 5
178 Robot Rapping Results Report Codeforces CROC 2016 - Elimination Round 5
179 Exposition Codeforces Codeforces Beta Round #6 (Div. 2 Only) 5
180 Gourmet and Banquet Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 5
181 Read Time Codeforces Codeforces Round #200 (Div. 1) & Codeforces Round #200 (Div. 2) 5
182 Showstopper SPOJ 5
183 Vitya and Strange Lesson Codeforces Codeforces Round #430 (Div. 2) 5
184 Blood Cousins Codeforces Codeforces Round #130 (Div. 2) 5
185 Renting Bikes Codeforces Codeforces Round #211 (Div. 2) 5
186 Misha and Permutations Summation Codeforces Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) 5
187 Unordered Subsequence Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 5
188 Road to Post Office Codeforces Educational Codeforces Round 15 5
189 Complete The Graph Codeforces Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) 5
190 Preparing for the Contest Codeforces Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) 5
191 Olympiad Codeforces Codeforces Round #137 (Div. 2) 5
192 Fedor and coupons Codeforces Codeforces Round #390 (Div. 2) 5
193 Copying Data Codeforces Croc Champ 2013 - Round 1 5
194 Kyoya and Permutation Codeforces Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) 5
195 Cycles Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 5
196 Chip 'n Dale Rescue Rangers Codeforces Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) 5
197 Energy exchange Codeforces Codeforces Beta Round #62 5
198 Monitor Codeforces Codeforces Beta Round #16 (Div. 2 Only) 5
199 Sereja ans Anagrams Codeforces Codeforces Round #215 (Div. 1) & Codeforces Round #215 (Div. 2) 5
200 Cartons of milk Codeforces Codeforces Round #398 (Div. 2) 5
201 Showstopper PKU 5
202 Pillars Codeforces Codeforces Round #271 (Div. 2) 5
203 Guess That Car! Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 6
204 Vladik and cards Codeforces Codeforces Round #384 (Div. 2) 6
205 Police Patrol Codeforces Codeforces Round #244 (Div. 2) 6
206 Stripe 2 Codeforces Codeforces Alpha Round #21 (Codeforces format) 6
207 Number Busters Codeforces Codeforces Round #224 (Div. 2) 6
208 Mushroom Scientists Codeforces Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) 6
209 Valera and Queries Codeforces Codeforces Round #216 (Div. 2) 6
210 Stadium and Games Codeforces MemSQL start[c]up Round 1 6
211 Tyndex.Brome Codeforces Codeforces Beta Round #58 6
212 Towers Codeforces Codeforces Round #142 (Div. 1) 6
213 Array Codeforces Codeforces Beta Round #53 6
214 Searching Rectangles Codeforces Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) 6
215 Delivery Bears Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 6
216 Random Task Codeforces Codeforces Round #247 (Div. 2) 6
217 CUBE ROOT SPOJ 6
218 Characteristics of Rectangles Codeforces Codeforces Round #194 (Div. 1) 6
219 Santa Claus and Tangerines Codeforces Technocup 2017 - Elimination Round 3 6
220 Gadgets for dollars and pounds Codeforces Educational Codeforces Round 3 6
221 Anya and Cubes Codeforces Codeforces Round #297 (Div. 2) 6
222 Sereja and Periods Codeforces Codeforces Round #187 (Div. 1) & Codeforces Round #187 (Div. 2) 6
223 Binary Search Tree UVA 6
224 Boxes of Chocolate SPOJ 6
225 GukiZ and GukiZiana Codeforces Codeforces Round #307 (Div. 2) 6
226 Mr. Bender and Square Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) 6
227 Restoring Increasing Sequence Codeforces Codeforces Round #279 (Div. 2) 6
228 Sum of Medians Codeforces Yandex.Algorithm 2011 Round 1 6
229 Hiring Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 6
230 Hot Bath Codeforces Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) 6
231 Fly, freebies, fly! Codeforces Testing Round #9 6
232 Infinite Inversions Codeforces Codeforces Round #301 (Div. 2) 6
233 Banana Codeforces MemSQL start[c]up Round 2 - online version 6
234 Little Elephant and LCM Codeforces Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) 6
235 Glad to see you! Codeforces Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) 6
236 Number of Triplets Codeforces Croc Champ 2012 - Round 2 (Unofficial Div. 2 Edition) 6
237 Buses Codeforces Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) 6
238 Doctor Codeforces Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) 6
239 Domino Principle Codeforces Codeforces Beta Round #52 (Div. 2) 7
240 Nudist Beach Codeforces Codeforces Round #309 (Div. 1) 7
241 Zip-line Codeforces Codeforces Round #345 (Div. 1) 7
242 Simple Skewness Codeforces 8VC Venture Cup 2016 - Elimination Round 7
243 Spider's Web Codeforces Codeforces Round #133 (Div. 2) 7
244 Empire Strikes Back Codeforces Codeforces Round #181 (Div. 2) 7
245 Biathlon Codeforces Codeforces Beta Round #72 (Div. 2 Only) 7
246 Inna and Binary Logic Codeforces Codeforces Round #234 (Div. 2) 7
247 Hexagons Codeforces Codeforces Round #338 (Div. 2) 7
248 Bug in Code Codeforces Coder-Strike 2014 - Finals (online edition, Div. 2) & Coder-Strike 2014 - Finals (online edition, Div. 1) & Coder-Strike 2014 - Finals (online edition, Div. 2) & Coder-Strike 2014 - Finals (online edition, Div. 1) 7
249 Inna and Sequence Codeforces Codeforces Round #220 (Div. 2) 7
250 Case of a Top Secret Codeforces Codeforces Round #310 (Div. 1) 7
251 Hack it! Codeforces Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) 7
252 Robo-Footballer Codeforces Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) 7
253 Mushroom Gnomes - 2 Codeforces Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) 7
254 Hiking Codeforces Codeforces Round #277.5 (Div. 2) 7
255 Harry Potter and the Golden Snitch Codeforces Codeforces Beta Round #60 7
256 Log Stream Analysis Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC) 7
257 Three Base Stations Codeforces Codeforces Beta Round #48 7
258 Programming Language Codeforces Codeforces Round #126 (Div. 2) 7
259 Lemmings Codeforces VK Cup 2012 Round 2 7
260 Arthur and Questions Codeforces Codeforces Round #293 (Div. 2) 7
261 Optical Experiment Codeforces Manthan 2011 7
262 Professor GukiZ and Two Arrays Codeforces Educational Codeforces Round 6 7
263 Cubes Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 7
264 Dima and Trap Graph Codeforces Codeforces Round #214 (Div. 2) 7
265 Building Bridge Codeforces CROC-MBTU 2012, Final Round (Online version, Div. 2) 7
266 Blood Cousins Return Codeforces Codeforces Round #151 (Div. 2) 7
267 Blog Photo Codeforces Codeforces Beta Round #49 (Div. 2) 7
268 Sign on Fence Codeforces Codeforces Round #276 (Div. 1) 7
269 Sereja and Squares Codeforces Codeforces Round #243 (Div. 1) 7
270 Hostname Aliases Codeforces CROC 2016 - Qualification 7
271 George and Cards Codeforces Codeforces Round #227 (Div. 2) 7
272 Memory for Arrays Codeforces Croc Champ 2013 - Finals (online version, Div. 1) 8
273 Lucky Tickets Codeforces Codeforces Beta Round #64 8
274 Space Rescuers Codeforces Codeforces Beta Round #82 (Div. 2) 8
275 Present to Mom Codeforces Codeforces Beta Round #95 (Div. 2) 8
276 DZY Loves Strings Codeforces Codeforces Round #254 (Div. 1) 8
277 Animals and Puzzle Codeforces Codeforces Round #371 (Div. 1) 8
278 Space Voyage Codeforces ABBYY Cup 2.0 - Easy 8
279 Need For Brake Codeforces Codeforces Beta Round #66 8
280 Preorder Test Codeforces 8VC Venture Cup 2016 - Final Round 8
281 Berland collider Codeforces Codeforces Beta Round #24 8
282 Max and Bike Codeforces Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) 8
283 Volcanoes Codeforces Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) 8
284 Bombing Codeforces Codeforces Beta Round #47 8
285 Printer Codeforces Codeforces Round #154 (Div. 2) 8
286 Petya and Tree Codeforces Yandex.Algorithm 2011 Round 1 8
287 DZY Loves Planting Codeforces Codeforces Round #254 (Div. 1) 8
288 Maze 1D Codeforces Codeforces Round #237 (Div. 2) 8
289 Michael and Charging Stations Codeforces Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) 8
290 Sweets for Everyone! Codeforces Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) 8
291 Misha and Palindrome Degree Codeforces Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) 8
292 MST Company Codeforces Codeforces Testing Round #2 8
293 Tourist Codeforces All-Ukrainian School Olympiad in Informatics 8
294 Startup Funding Codeforces Manthan, Codefest 16 8
295 Thwarting Demonstrations Codeforces Codeforces Round #121 (Div. 1) 8
296 Summer Earnings Codeforces Codeforces Round #194 (Div. 1) 8
297 New Year and Cleaning Codeforces Good Bye 2015 8
298 Mashmokh and Water Tanks Codeforces Codeforces Round #240 (Div. 1) 8
299 Two Friends Codeforces Codeforces Beta Round #8 8
300 Biathlon Track Codeforces Codeforces Round #242 (Div. 2) 8
301 Sereja and Straight Lines Codeforces Codeforces Round #187 (Div. 1) 8
302 Bear and Bowling 4 Codeforces Educational Codeforces Round 11 8
303 Don't fear, DravDe is kind Codeforces Codeforces Beta Round #28 (Codeforces format) 8
304 Choosing Subtree is Fun Codeforces Codeforces Round #219 (Div. 1) 8
305 Morning run Codeforces Croc Champ 2013 - Finals (online version, Div. 1) 8
306 Guard Towers Codeforces Yandex.Algorithm 2011 Round 1 8
307 Vanya and Balloons Codeforces Codeforces Round #355 (Div. 2) 8
308 Smile House Codeforces Codeforces Testing Round #4 8
309 Electric Charges Codeforces AIM Tech Round (Div. 1) & AIM Tech Round (Div. 2) 8
310 Tricky and Clever Password Codeforces Codeforces Beta Round #30 (Codeforces format) 8
311 Dividing Kingdom Codeforces Codeforces Round #158 (Div. 2) 9
312 Delivering Carcinogen Codeforces Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) 9
313 Thoroughly Bureaucratic Organization Codeforces Codeforces Round #127 (Div. 1) 9
314 Optimal Point Codeforces Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) 9
315 Freezing with Style Codeforces Codeforces Round #107 (Div. 1) 9
316 Friends Codeforces Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) 9
317 Gripping Story Codeforces Codeforces Round #125 (Div. 1) 9
318 Buses and People Codeforces Codeforces Round #111 (Div. 2) 9
319 Lucky Segments Codeforces Codeforces Beta Round #91 (Div. 1 Only) 9
320 Space Voyage Codeforces ABBYY Cup 2.0 - Easy 9
321 Winning Strategy Codeforces Yandex.Algorithm 2011 Finals 9
322 Chemistry Experiment Codeforces Codeforces Round #247 (Div. 2) 9
323 Road to Home Codeforces Codeforces Round #374 (Div. 2) 9
324 Fence Codeforces Codeforces Round #144 (Div. 1) 9
325 Help Greg the Dwarf Codeforces Codeforces Beta Round #78 (Div. 1 Only) & Codeforces Beta Round #78 (Div. 2 Only) 9
326 Archer's Shot Codeforces Codeforces Beta Round #70 (Div. 2) 9
327 Tractor College Codeforces Codeforces Round #126 (Div. 2) 9
328 Minimum Diameter Codeforces VK Cup 2012 Round 3 9
329 Pasha and Pipe Codeforces Codeforces Round #293 (Div. 2) 9
330 Strange Radiation Codeforces Codeforces Round #425 (Div. 2) 9
331 Cutting a Fence Codeforces VK Cup 2012 Finals (unofficial online-version) 9
332 Mr. Kitayuta vs. Bamboos Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 9
333 Karen and Cards Codeforces Codeforces Round #419 (Div. 1) 9
334 BCPC Codeforces Codeforces Round #328 (Div. 2) 10
335 Campus Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) 10
336 Forward, march! Codeforces Codeforces Beta Round #11 10
337 Cross Sum Codeforces Codeforces Round #336 (Div. 1) 10
338 Duff in Mafia Codeforces Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) 10
339 Sheep Codeforces Croc Champ 2013 - Finals (online version, Div. 1) 10
340 Soap Time! - 2 Codeforces Codeforces Round #118 (Div. 1) 10
341 Inna and Babies Codeforces Codeforces Round #220 (Div. 2) 10
342 Nikita and game Codeforces Codeforces Round #430 (Div. 2) 10
343 Mod Mod Mod Codeforces Codeforces Round #445 (Div. 1, based on Technocup 2018 Elimination Round 3) 10
344 Painting Edges Codeforces Codeforces Round #319 (Div. 1) 10
345 Armistice Area Apportionment Codeforces CROC 2016 - Elimination Round 10
346 Misha and LCP on Tree Codeforces Codeforces Round #285 (Div. 1) 10
347 Furukawa Nagisa's Tree Codeforces Codeforces Round #248 (Div. 1) 10
348 Karen and Neighborhood Codeforces Codeforces Round #419 (Div. 1) 10
349 Looking for Owls Codeforces Codeforces Round #203 (Div. 2) 10
350 Berland Miners Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 10