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