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