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