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