Geometry

Problem Name Online Judge Year Contest Difficulty Level
1 Gerald's Hexagon Codeforces Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) 1
2 Maximal Quadrilateral Area SPOJ 1
3 Is This Integration ? UVA 1
4 The Grazing Cow UVA 1
5 Julka SPOJ 1
6 Han Solo and Lazer Gun Codeforces Codeforces Round #291 (Div. 2) 1
7 Currency System in Geraldion Codeforces Codeforces Round #313 (Div. 2) 1
8 Mahmoud and a Triangle Codeforces Codeforces Round #396 (Div. 2) 1
9 One Geometry Problem SPOJ 1
10 Triangle Codeforces Codeforces Beta Round #6 (Div. 2 Only) 1
11 Amr and Pins Codeforces Codeforces Round #287 (Div. 2) 1
12 Lifting the Stone SPOJ 1
13 Gleb And Pizza Codeforces Codeforces Round #430 (Div. 2) 1
14 Carmichael Numbers UVA 1
15 Triangle From Centroid SPOJ 1
16 Fancy Fence Codeforces Codeforces Round #165 (Div. 2) 1
17 Colourful Flowers UVA 1
18 Sphere in a tetrahedron SPOJ 1
19 Beru-taxi Codeforces Codeforces Round #367 (Div. 2) 1
20 Equipment Box SPOJ 1
21 Sunny Mountains UVA 2
22 Wasted Time Codeforces Codeforces Beta Round #93 (Div. 2 Only) 2
23 The easiest way UVA 2
24 Pouring Rain Codeforces Codeforces Round #349 (Div. 2) 2
25 Pipe PKU 2
26 Parallelogram is Back Codeforces Codeforces Round #388 (Div. 2) 2
27 Beavergnaw UVA 2
28 Overlapping Rectangles UVA 2
29 Packing polygons UVA 2
30 Doors and Penguins Live Archive 2006 North America - Mid-Atlantic USA & North America - Rocky Mountain 2
31 Handball UVA 2
32 Rings and Glue UVA 2
33 Area UVA 2
34 Soya Milk UVA 2
35 Goal for Raúl SPOJ 2
36 Area TJU 2
37 Colourful Flowers URI 2
38 Gleaming the Cubes UVA 2
39 Railway UVA 2
40 The Ant SPOJ 2
41 Land Acquisition SPOJ 2
42 Crazy Town Codeforces Codeforces Round #284 (Div. 1) & Codeforces Round #284 (Div. 2) 2
43 Trace Codeforces Codeforces Round #110 (Div. 2) 2
44 Convex Hull Finding UVA 2
45 Elevator URI 2
46 Coat of Anticubism Codeforces Codeforces Round #349 (Div. 2) 3
47 Treasure Hunt PKU 3
48 Bounding box UVA 3
49 Gifts in a Hexagonal Box UVA 3
50 Mister B and Angle in Polygon Codeforces Codeforces Round #421 (Div. 2) 3
51 A Problem about Polyline Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 3
52 Constellation Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 3
53 Athletics Track UVA 3
54 I Conduit SPOJ 3
55 Point on Spiral Codeforces Codeforces Round #171 (Div. 2) 3
56 SPIRAL RUN SPOJ 3
57 Geometry and a Square SPOJ 3
58 Geometry Problem Live Archive 2009 Asia - Amritapuri 3
59 Area of circles SPOJ 3
60 Calculate the Area SPOJ 3
61 Bright Lights UVA 3
62 Bicycle Race Codeforces Codeforces Round #346 (Div. 2) 3
63 Convex Hull UVA 3
64 Anton and Lines Codeforces Codeforces Round #329 (Div. 2) 3
65 Air Strike SPOJ 3
66 New Year Table Codeforces Codeforces Round #100 3
67 Arpa and an exam about geometry Codeforces Codeforces Round #432 (Div. 2, based on IndiaHacks Final Round 2017) 3
68 Captain Marmot Codeforces Codeforces Round #271 (Div. 2) 4
69 The Teacher's Side of Math Live Archive 2007 Asia - Tokyo 4
70 Ancient Berland Circus Codeforces Codeforces Beta Round #1 4
71 Face the mate SPOJ 4
72 Intersection of Two Prisms Live Archive 2010 Asia - Tokyo 4
73 Will Indiana Jones Get There SPOJ 4
74 Hopscotch Codeforces Codeforces Round #101 (Div. 2) 4
75 View Angle Codeforces Codeforces Round #159 (Div. 2) 4
76 Fence PKU 4
77 Frontier Timus 4
78 Depression Codeforces Codeforces Beta Round #69 (Div. 2 Only) 4
79 Where do I Turn? Codeforces Codeforces Round #140 (Div. 2) 4
80 Tell Your World Codeforces Codeforces Round #431 (Div. 2) 4
81 Chocolate Chip Cookies UVA 4
82 Triangle Codeforces Codeforces Beta Round #18 (Div. 2 Only) 4
83 Vanya and Triangles Codeforces Codeforces Round #308 (Div. 2) 4
84 Buns Codeforces Codeforces Beta Round #82 (Div. 2) 4
85 Peter and Snow Blower Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 4
86 Magic Box Codeforces Codeforces Round #143 (Div. 2) 4
87 The Sultan's Problem UVA 4
88 Running Student Codeforces Codeforces Beta Round #9 (Div. 2 Only) 4
89 Surrounded Codeforces Codeforces Round #120 (Div. 2) 5
90 Kalila and Dimna in the Logging Industry Codeforces Codeforces Round #189 (Div. 1) & Codeforces Round #189 (Div. 2) 5
91 Nearest vectors Codeforces Educational Codeforces Round 1 5
92 Dog Distance UVA 5
93 Equilateral Triangle in a Triangle Grid UVA 5
94 Chip 'n Dale Rescue Rangers Codeforces Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) 5
95 Series of Crimes Codeforces Croc Champ 2012 - Round 2 (Unofficial Div. 2 Edition) 5
96 Restore Cube Codeforces Codeforces Round #265 (Div. 1) 5
97 An overnight dance in discotheque Codeforces Codeforces Round #418 (Div. 2) 5
98 Cupboard and Balloons Codeforces Codeforces Round #199 (Div. 2) 5
99 Area in Triangle PKU 5
100 Rectangle and Square Codeforces Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) 5
101 Four Segments Codeforces Codeforces Beta Round #14 (Div. 2) 5
102 4-point polyline Codeforces MemSQL Start[c]UP 2.0 - Round 1 5
103 Number of Parallelograms Codeforces Educational Codeforces Round 11 5
104 Points on Plane Codeforces Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) 5
105 Tricky Function Codeforces Codeforces Round #245 (Div. 1) 5
106 Nature Reserve Codeforces Codeforces Round #514 (Div. 2) 5
107 All Souls Night UVA 6
108 Rooter's Song Codeforces Codeforces Round #431 (Div. 1) & Codeforces Round #431 (Div. 2) 6
109 Ada and Cucumber SPOJ 6
110 Polygons Codeforces Codeforces Round #113 (Div. 2) 6
111 Fighting Against a Polygonal Monster UVA 6
112 Chris and Road Codeforces Codeforces Round #365 (Div. 2) 6
113 Tower for Cellular Telephony UVA 6
114 Shooting Gallery Codeforces Codeforces Beta Round #30 (Codeforces format) 6
115 Hail Timus 6
116 Area of Two Circles' Intersection Codeforces Educational Codeforces Round 2 6
117 Device Timus 6
118 Maximal Area Quadrilateral Codeforces Codeforces Round #198 (Div. 2) 6
119 Hit Ball Codeforces Codeforces Round #128 (Div. 2) 6
120 Heavy Disc SGU 6
121 Rectangle Puzzle Codeforces Codeforces Round #172 (Div. 1) & Codeforces Round #172 (Div. 2) 6
122 Cutting a Polygon UVA 6
123 Freelancer's Dreams Codeforces Codeforces Round #335 (Div. 1) & Codeforces Round #335 (Div. 2) 7
124 Knights Codeforces Codeforces Beta Round #33 (Codeforces format) 7
125 Paint Tree Codeforces Codeforces Round #124 (Div. 1) & Codeforces Round #124 (Div. 2) 7
126 Product Sum Codeforces Codeforces Round #344 (Div. 2) 7
127 Sequence of points Codeforces Codeforces Beta Round #24 7
128 Fireball Timus 7
129 Turn Codeforces Experimental Educational Round: VolBIT Formulas Blitz 7
130 Commentator problem Codeforces Codeforces Beta Round #2 7
131 Robo-Footballer Codeforces Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) 7
132 Vika and Segments Codeforces Codeforces Round #337 (Div. 2) 7
133 Hill Climbing Codeforces Codeforces Round #238 (Div. 1) 7
134 A Square and Equilateral Triangles UVA 7
135 Building Bridge Codeforces CROC-MBTU 2012, Final Round (Online version, Div. 2) 7
136 Tavas and Pashmaks Codeforces Codeforces Round #299 (Div. 2) & Codeforces Round #299 (Div. 1) 7
137 Set of Points Codeforces Codeforces Round #170 (Div. 1) & Codeforces Round #170 (Div. 2) 7
138 Mirror Timus 7
139 Harry Potter and the Golden Snitch Codeforces Codeforces Beta Round #60 7
140 Minimum Sum Codeforces School Regional Team Contest, Saratov, 2011 7
141 Pyramids Codeforces Experimental Educational Round: VolBIT Formulas Blitz 7
142 Cookie UVA 8
143 Bear and Bowling 4 Codeforces Educational Codeforces Round 11 8
144 Kill the Shaitan-Boss Timus 8
145 National Park Timus 8
146 Letter A Codeforces Codeforces Beta Round #13 8
147 Mirror Box Codeforces Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) 8
148 Summer Earnings Codeforces Codeforces Round #194 (Div. 1) 8
149 Cheese Timus 8
150 Space Rescuers Codeforces Codeforces Beta Round #82 (Div. 2) 8
151 Hide and seek UVA 8
152 Chapaev Timus 8
153 Very simple problem Codeforces Codeforces Beta Round #51 8
154 Triangles Codeforces Codeforces Beta Round #13 8
155 The Child and Polygon Codeforces Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) 8
156 Professor's task Codeforces Codeforces Beta Round #64 8
157 Arrow Codeforces Experimental Educational Round: VolBIT Formulas Blitz 8
158 Special Olympics Codeforces Codeforces Round #125 (Div. 2) 8
159 Igloo Skyscraper Codeforces Codeforces Beta Round #75 (Div. 1 Only) 8
160 Area of a Star Codeforces Experimental Educational Round: VolBIT Formulas Blitz 8
161 Two Friends Codeforces Codeforces Beta Round #8 8
162 Alyona and Triangles Codeforces Codeforces Round #358 (Div. 2) 8
163 Zoo Codeforces Croc Champ 2012 - Final 8
164 Bear and Floodlight Codeforces Codeforces Round #226 (Div. 2) 8
165 Deformed Wheel PKU 8
166 Sereja and Straight Lines Codeforces Codeforces Round #187 (Div. 1) 8
167 Good Manners Timus 8
168 Guard Towers Codeforces Yandex.Algorithm 2011 Round 1 8
169 Happy Farm 5 Codeforces Codeforces Beta Round #47 8
170 Max and Bike Codeforces Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) 8
171 Tetragon Codeforces Codeforces Beta Round #23 9
172 Stars Codeforces Codeforces Round #131 (Div. 1) 9
173 New Year Snowflake Codeforces Codeforces Round #100 9
174 Little Elephant and Triangle Codeforces Codeforces Round #136 (Div. 1) 9
175 Empire Strikes Back Timus 9
176 Save the City! Codeforces Manthan 2011 9
177 Rotation Codeforces Unknown Language Round #3 9
178 Wires Timus 9
179 Ksusha and Square Codeforces Croc Champ 2013 - Round 2 9
180 Martian Food Codeforces Codeforces Beta Round #69 (Div. 1 Only) 9
181 Randomizer Codeforces Codeforces Round #313 (Div. 1) 9
182 Roland and Rose Codeforces Codeforces Round #262 (Div. 2) 9
183 Biscuits Timus 9
184 Bowls Codeforces Codeforces Beta Round #36 9
185 Delivering Carcinogen Codeforces Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) 9
186 Archer's Shot Codeforces Codeforces Beta Round #70 (Div. 2) 9
187 Space mines Codeforces Codeforces Beta Round #74 (Div. 1 Only) 9
188 Fire Signals Timus 9
189 Max and Min Codeforces VK Cup 2015 - Finals, online mirror 9
190 Light Timus 9
191 3D Geometry A2 Online Judge 9
192 The Last Hole! Codeforces Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) 9
193 Goat in the Garden 4 Timus 9
194 Runaway to a Shadow Codeforces Codeforces Round #357 (Div. 2) 9
195 Battlefield Codeforces Codeforces Round #117 (Div. 2) 9
196 New Year Tree Decorations Codeforces Good Bye 2013 9
197 The Mentaculus Timus 9
198 Inquisition Codeforces Codeforces Beta Round #58 9
199 King's Problem? Codeforces Codeforces Beta Round #30 (Codeforces format) 9
200 Triangle Game Timus 9
201 Intersect Until You're Sick of It Timus 9
202 Cannon Codeforces Codeforces Beta Round #44 (Div. 2) 9
203 Karen and Cards Codeforces Codeforces Round #419 (Div. 1) 9
204 Corridor Codeforces Yandex.Algorithm 2011 Qualification 2 9
205 Help Greg the Dwarf Codeforces Codeforces Beta Round #78 (Div. 1 Only) & Codeforces Beta Round #78 (Div. 2 Only) 9
206 Ruminations on Ruminants Codeforces Codeforces Round #334 (Div. 1) 9
207 Triangle Game 2 Timus 9
208 Hide-and-Seek Codeforces Codeforces Beta Round #32 (Div. 2, Codeforces format) 9
209 Mouse Timus 9
210 Ship's Shortest Path Codeforces Codeforces Beta Round #67 (Div. 2) 9
211 Non-Flying Weather Timus 9
212 Fox and Meteor Shower Codeforces Codeforces Round #228 (Div. 1) 10
213 Gena and Second Distance Codeforces Codeforces Round #253 (Div. 1) 10
214 Mobile Life Timus 10
215 Cubes Codeforces Codeforces Round #150 (Div. 1) 10
216 Triangles 3000 Codeforces Codeforces Round #296 (Div. 1) 10
217 Inna and Babies Codeforces Codeforces Round #220 (Div. 2) 10
218 Iron Man Codeforces Codeforces Round #366 (Div. 1) 10
219 Mogohu-Rea Idol Codeforces Codeforces Beta Round #73 (Div. 1 Only) 10
220 Vacuum ?leaner Codeforces Codeforces Beta Round #50 10
221 Cross Sum Codeforces Codeforces Round #336 (Div. 1) 10
222 Lightbulb for Minister Codeforces Codeforces Round #231 (Div. 2) 10
223 Spider Codeforces Codeforces Round #138 (Div. 1) 10
224 Contact Codeforces Codeforces Beta Round #62 10
225 Goat in the Garden 6 Timus 10
226 Points in triangle Codeforces VK Cup 2015 - Wild Card Round 1 10
227 Cookie Clicker Codeforces Codeforces Round #222 (Div. 1) 10
228 Lada Malina Codeforces Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) 10
229 Birthday Codeforces Codeforces Beta Round #94 (Div. 1 Only) 10
230 Polygon Codeforces Testing Round #6 10
231 Armistice Area Apportionment Codeforces CROC 2016 - Elimination Round 10
232 Cut Length Codeforces Educational Codeforces Round 1 10
233 Help Greg the Dwarf 2 Codeforces Codeforces Round #102 (Div. 1) 10
234 Planar Graph Codeforces Codeforces Round #138 (Div. 1) 10
235 Darts Codeforces Codeforces Beta Round #83 (Div. 1 Only) 10
236 Boss, I Can See You! Timus 10
237 BerPaint Codeforces School Team Contest #2 (Winter Computer School 2010/11) 10
238 BCPC Codeforces Codeforces Round #328 (Div. 2) 10
239 Hongcow Draws a Circle Codeforces Codeforces Round #385 (Div. 1) 10
240 Winding Number Timus 10
241 Tennis Rackets Codeforces Croc Champ 2013 - Finals (online version, Div. 1) 10
242 New Year and Cake Codeforces Good Bye 2015 10
243 DravDe saves the world Codeforces Codeforces Beta Round #28 (Codeforces format) 10
244 Spectator Riots Codeforces Bubble Cup 8 - Finals [Online Mirror] 10
245 Playing the ball Codeforces Coder-Strike 2014 - Finals (online edition, Div. 1) 10
246 Martian Colony Codeforces Codeforces Round #109 (Div. 1) 10
247 Looking for Owls Codeforces Codeforces Round #203 (Div. 2) 10
248 Gears Codeforces Codeforces Round #283 (Div. 1) 10
249 Alternative Reality Codeforces Codeforces Beta Round #90 10
250 Plane of Tanks Codeforces Codeforces Beta Round #66 10
251 Interfering Segment Timus 10
252 Multishot in the Secret Cow Level Timus 10
253 Emperor's Problem Codeforces School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) 10
254 Drawing Circles is Fun Codeforces Codeforces Round #219 (Div. 1) 10