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