Problem Name | Online Judge | Year | Contest | Difficulty Level | |
---|---|---|---|---|---|

1 | Equipment Box | SPOJ | 1 | ||

2 | Triangle From Centroid | SPOJ | 1 | ||

3 | One Geometry Problem | SPOJ | 1 | ||

4 | Maximal Quadrilateral Area | SPOJ | 1 | ||

5 | Sphere in a tetrahedron | SPOJ | 1 | ||

6 | Lifting the Stone | SPOJ | 1 | ||

7 | Triangle | Codeforces | Codeforces Beta Round #6 (Div. 2 Only) | 1 | |

8 | Fancy Fence | Codeforces | Codeforces Round #165 (Div. 2) | 1 | |

9 | Amr and Pins | Codeforces | Codeforces Round #287 (Div. 2) | 1 | |

10 | Han Solo and Lazer Gun | Codeforces | Codeforces Round #291 (Div. 2) | 1 | |

11 | Currency System in Geraldion | Codeforces | Codeforces Round #313 (Div. 2) | 1 | |

12 | Colourful Flowers | UVA | 1 | ||

13 | Is This Integration ? | UVA | 1 | ||

14 | The Grazing Cow | UVA | 1 | ||

15 | Carmichael Numbers | UVA | 1 | ||

16 | Gerald's Hexagon | Codeforces | Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) | 1 | |

17 | Julka | SPOJ | 1 | ||

18 | Beru-taxi | Codeforces | Codeforces Round #367 (Div. 2) | 1 | |

19 | Gleb And Pizza | Codeforces | Codeforces Round #430 (Div. 2) | 1 | |

20 | Mahmoud and a Triangle | Codeforces | Codeforces Round #396 (Div. 2) | 1 | |

21 | Trace | Codeforces | Codeforces Round #110 (Div. 2) | 2 | |

22 | Wasted Time | Codeforces | Codeforces Beta Round #93 (Div. 2 Only) | 2 | |

23 | The Ant | SPOJ | 2 | ||

24 | Goal for Raúl | SPOJ | 2 | ||

25 | Doors and Penguins | Live Archive | 2006 | North America - Mid-Atlantic USA & North America - Rocky Mountain | 2 |

26 | Area | TJU | 2 | ||

27 | Land Acquisition | SPOJ | 2 | ||

28 | Pipe | PKU | 2 | ||

29 | Handball | UVA | 2 | ||

30 | Sunny Mountains | UVA | 2 | ||

31 | Area | UVA | 2 | ||

32 | Beavergnaw | UVA | 2 | ||

33 | Convex Hull Finding | UVA | 2 | ||

34 | Railway | UVA | 2 | ||

35 | Packing polygons | UVA | 2 | ||

36 | Colourful Flowers | URI | 2 | ||

37 | Soya Milk | UVA | 2 | ||

38 | Overlapping Rectangles | UVA | 2 | ||

39 | The easiest way | UVA | 2 | ||

40 | Elevator | URI | 2 | ||

41 | Crazy Town | Codeforces | Codeforces Round #284 (Div. 1) & Codeforces Round #284 (Div. 2) | 2 | |

42 | Pouring Rain | Codeforces | Codeforces Round #349 (Div. 2) | 2 | |

43 | Parallelogram is Back | Codeforces | Codeforces Round #388 (Div. 2) | 2 | |

44 | Rings and Glue | UVA | 2 | ||

45 | Gleaming the Cubes | UVA | 2 | ||

46 | I Conduit | SPOJ | 3 | ||

47 | Geometry and a Square | SPOJ | 3 | ||

48 | Area of circles | SPOJ | 3 | ||

49 | Air Strike | SPOJ | 3 | ||

50 | New Year Table | Codeforces | Codeforces Round #100 | 3 | |

51 | Calculate the Area | SPOJ | 3 | ||

52 | Treasure Hunt | PKU | 3 | ||

53 | Point on Spiral | Codeforces | Codeforces Round #171 (Div. 2) | 3 | |

54 | Athletics Track | UVA | 3 | ||

55 | Convex Hull | UVA | 3 | ||

56 | Gifts in a Hexagonal Box | UVA | 3 | ||

57 | Bright Lights | UVA | 3 | ||

58 | Bounding box | UVA | 3 | ||

59 | SPIRAL RUN | SPOJ | 3 | ||

60 | Bicycle Race | Codeforces | Codeforces Round #346 (Div. 2) | 3 | |

61 | Constellation | Codeforces | Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) | 3 | |

62 | Anton and Lines | Codeforces | Codeforces Round #329 (Div. 2) | 3 | |

63 | A Problem about Polyline | Codeforces | Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] | 3 | |

64 | Coat of Anticubism | Codeforces | Codeforces Round #349 (Div. 2) | 3 | |

65 | Mister B and Angle in Polygon | Codeforces | Codeforces Round #421 (Div. 2) | 3 | |

66 | Arpa and an exam about geometry | Codeforces | Codeforces Round #432 (Div. 2, based on IndiaHacks Final Round 2017) | 3 | |

67 | Geometry Problem | Live Archive | 2009 | Asia - Amritapuri | 3 |

68 | Magic Box | Codeforces | Codeforces Round #143 (Div. 2) | 4 | |

69 | Where do I Turn? | Codeforces | Codeforces Round #140 (Div. 2) | 4 | |

70 | Hopscotch | Codeforces | Codeforces Round #101 (Div. 2) | 4 | |

71 | Depression | Codeforces | Codeforces Beta Round #69 (Div. 2 Only) | 4 | |

72 | Triangle | Codeforces | Codeforces Beta Round #18 (Div. 2 Only) | 4 | |

73 | Running Student | Codeforces | Codeforces Beta Round #9 (Div. 2 Only) | 4 | |

74 | Ancient Berland Circus | Codeforces | Codeforces Beta Round #1 | 4 | |

75 | Will Indiana Jones Get There | SPOJ | 4 | ||

76 | Face the mate | SPOJ | 4 | ||

77 | Fence | PKU | 4 | ||

78 | Captain Marmot | Codeforces | Codeforces Round #271 (Div. 2) | 4 | |

79 | Peter and Snow Blower | Codeforces | Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) | 4 | |

80 | Vanya and Triangles | Codeforces | Codeforces Round #308 (Div. 2) | 4 | |

81 | View Angle | Codeforces | Codeforces Round #159 (Div. 2) | 4 | |

82 | Buns | Codeforces | Codeforces Beta Round #82 (Div. 2) | 4 | |

83 | Tell Your World | Codeforces | Codeforces Round #431 (Div. 2) | 4 | |

84 | The Sultan's Problem | UVA | 4 | ||

85 | Chocolate Chip Cookies | UVA | 4 | ||

86 | The Teacher's Side of Math | Live Archive | 2007 | Asia - Tokyo | 4 |

87 | Intersection of Two Prisms | Live Archive | 2010 | Asia - Tokyo | 4 |

88 | Frontier | Timus | 4 | ||

89 | Dog Distance | UVA | 5 | ||

90 | Surrounded | Codeforces | Codeforces Round #120 (Div. 2) | 5 | |

91 | Series of Crimes | Codeforces | Croc Champ 2012 - Round 2 (Unofficial Div. 2 Edition) | 5 | |

92 | Rectangle and Square | Codeforces | Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) | 5 | |

93 | Four Segments | Codeforces | Codeforces Beta Round #14 (Div. 2) | 5 | |

94 | Area in Triangle | PKU | 5 | ||

95 | 4-point polyline | Codeforces | MemSQL Start[c]UP 2.0 - Round 1 | 5 | |

96 | Equilateral Triangle in a Triangle Grid | UVA | 5 | ||

97 | Number of Parallelograms | Codeforces | Educational Codeforces Round 11 | 5 | |

98 | Nearest vectors | Codeforces | Educational Codeforces Round 1 | 5 | |

99 | Chip 'n Dale Rescue Rangers | Codeforces | Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) | 5 | |

100 | Points on Plane | Codeforces | Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) | 5 | |

101 | Restore Cube | Codeforces | Codeforces Round #265 (Div. 1) | 5 | |

102 | Tricky Function | Codeforces | Codeforces Round #245 (Div. 1) | 5 | |

103 | Cupboard and Balloons | Codeforces | Codeforces Round #199 (Div. 2) | 5 | |

104 | Kalila and Dimna in the Logging Industry | Codeforces | Codeforces Round #189 (Div. 1) & Codeforces Round #189 (Div. 2) | 5 | |

105 | An overnight dance in discotheque | Codeforces | Codeforces Round #418 (Div. 2) | 5 | |

106 | Nature Reserve | Codeforces | Codeforces Round #514 (Div. 2) | 5 | |

107 | All Souls Night | UVA | 6 | ||

108 | Hit Ball | Codeforces | Codeforces Round #128 (Div. 2) | 6 | |

109 | Polygons | Codeforces | Codeforces Round #113 (Div. 2) | 6 | |

110 | Shooting Gallery | Codeforces | Codeforces Beta Round #30 (Codeforces format) | 6 | |

111 | Maximal Area Quadrilateral | Codeforces | Codeforces Round #198 (Div. 2) | 6 | |

112 | Heavy Disc | SGU | 6 | ||

113 | Area of Two Circles' Intersection | Codeforces | Educational Codeforces Round 2 | 6 | |

114 | Rectangle Puzzle | Codeforces | Codeforces Round #172 (Div. 1) & Codeforces Round #172 (Div. 2) | 6 | |

115 | Ada and Cucumber | SPOJ | 6 | ||

116 | Rooter's Song | Codeforces | Codeforces Round #431 (Div. 1) & Codeforces Round #431 (Div. 2) | 6 | |

117 | Chris and Road | Codeforces | Codeforces Round #365 (Div. 2) | 6 | |

118 | Fighting Against a Polygonal Monster | UVA | 6 | ||

119 | Tower for Cellular Telephony | UVA | 6 | ||

120 | Hail | Timus | 6 | ||

121 | Cutting a Polygon | UVA | 6 | ||

122 | Device | Timus | 6 | ||

123 | Building Bridge | Codeforces | CROC-MBTU 2012, Final Round (Online version, Div. 2) | 7 | |

124 | Robo-Footballer | Codeforces | Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) | 7 | |

125 | Paint Tree | Codeforces | Codeforces Round #124 (Div. 1) & Codeforces Round #124 (Div. 2) | 7 | |

126 | Minimum Sum | Codeforces | School Regional Team Contest, Saratov, 2011 | 7 | |

127 | Harry Potter and the Golden Snitch | Codeforces | Codeforces Beta Round #60 | 7 | |

128 | Knights | Codeforces | Codeforces Beta Round #33 (Codeforces format) | 7 | |

129 | Sequence of points | Codeforces | Codeforces Beta Round #24 | 7 | |

130 | Commentator problem | Codeforces | Codeforces Beta Round #2 | 7 | |

131 | A Square and Equilateral Triangles | UVA | 7 | ||

132 | Product Sum | Codeforces | Codeforces Round #344 (Div. 2) | 7 | |

133 | Pyramids | Codeforces | Experimental Educational Round: VolBIT Formulas Blitz | 7 | |

134 | Turn | Codeforces | Experimental Educational Round: VolBIT Formulas Blitz | 7 | |

135 | Vika and Segments | Codeforces | Codeforces Round #337 (Div. 2) | 7 | |

136 | Freelancer's Dreams | Codeforces | Codeforces Round #335 (Div. 1) & Codeforces Round #335 (Div. 2) | 7 | |

137 | Tavas and Pashmaks | Codeforces | Codeforces Round #299 (Div. 2) & Codeforces Round #299 (Div. 1) | 7 | |

138 | Hill Climbing | Codeforces | Codeforces Round #238 (Div. 1) | 7 | |

139 | Set of Points | Codeforces | Codeforces Round #170 (Div. 1) & Codeforces Round #170 (Div. 2) | 7 | |

140 | Mirror | Timus | 7 | ||

141 | Fireball | Timus | 7 | ||

142 | Special Olympics | Codeforces | Codeforces Round #125 (Div. 2) | 8 | |

143 | Zoo | Codeforces | Croc Champ 2012 - Final | 8 | |

144 | Space Rescuers | Codeforces | Codeforces Beta Round #82 (Div. 2) | 8 | |

145 | Igloo Skyscraper | Codeforces | Codeforces Beta Round #75 (Div. 1 Only) | 8 | |

146 | Guard Towers | Codeforces | Yandex.Algorithm 2011 Round 1 | 8 | |

147 | Professor's task | Codeforces | Codeforces Beta Round #64 | 8 | |

148 | Very simple problem | Codeforces | Codeforces Beta Round #51 | 8 | |

149 | Happy Farm 5 | Codeforces | Codeforces Beta Round #47 | 8 | |

150 | Triangles | Codeforces | Codeforces Beta Round #13 | 8 | |

151 | Letter A | Codeforces | Codeforces Beta Round #13 | 8 | |

152 | Two Friends | Codeforces | Codeforces Beta Round #8 | 8 | |

153 | Cookie | UVA | 8 | ||

154 | Hide and seek | UVA | 8 | ||

155 | Deformed Wheel | PKU | 8 | ||

156 | Mirror Box | Codeforces | Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) | 8 | |

157 | Bear and Bowling 4 | Codeforces | Educational Codeforces Round 11 | 8 | |

158 | Area of a Star | Codeforces | Experimental Educational Round: VolBIT Formulas Blitz | 8 | |

159 | Arrow | Codeforces | Experimental Educational Round: VolBIT Formulas Blitz | 8 | |

160 | Max and Bike | Codeforces | Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) | 8 | |

161 | Bear and Floodlight | Codeforces | Codeforces Round #226 (Div. 2) | 8 | |

162 | Summer Earnings | Codeforces | Codeforces Round #194 (Div. 1) | 8 | |

163 | Sereja and Straight Lines | Codeforces | Codeforces Round #187 (Div. 1) | 8 | |

164 | The Child and Polygon | Codeforces | Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) | 8 | |

165 | Alyona and Triangles | Codeforces | Codeforces Round #358 (Div. 2) | 8 | |

166 | Cheese | Timus | 8 | ||

167 | Chapaev | Timus | 8 | ||

168 | Good Manners | Timus | 8 | ||

169 | National Park | Timus | 8 | ||

170 | Kill the Shaitan-Boss | Timus | 8 | ||

171 | Stars | Codeforces | Codeforces Round #131 (Div. 1) | 9 | |

172 | Delivering Carcinogen | Codeforces | Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) | 9 | |

173 | Battlefield | Codeforces | Codeforces Round #117 (Div. 2) | 9 | |

174 | New Year Snowflake | Codeforces | Codeforces Round #100 | 9 | |

175 | Rotation | Codeforces | Unknown Language Round #3 | 9 | |

176 | Help Greg the Dwarf | Codeforces | Codeforces Beta Round #78 (Div. 1 Only) & Codeforces Beta Round #78 (Div. 2 Only) | 9 | |

177 | Space mines | Codeforces | Codeforces Beta Round #74 (Div. 1 Only) | 9 | |

178 | Corridor | Codeforces | Yandex.Algorithm 2011 Qualification 2 | 9 | |

179 | Archer's Shot | Codeforces | Codeforces Beta Round #70 (Div. 2) | 9 | |

180 | Martian Food | Codeforces | Codeforces Beta Round #69 (Div. 1 Only) | 9 | |

181 | Ship's Shortest Path | Codeforces | Codeforces Beta Round #67 (Div. 2) | 9 | |

182 | Save the City! | Codeforces | Manthan 2011 | 9 | |

183 | Inquisition | Codeforces | Codeforces Beta Round #58 | 9 | |

184 | Cannon | Codeforces | Codeforces Beta Round #44 (Div. 2) | 9 | |

185 | Bowls | Codeforces | Codeforces Beta Round #36 | 9 | |

186 | Hide-and-Seek | Codeforces | Codeforces Beta Round #32 (Div. 2, Codeforces format) | 9 | |

187 | King's Problem? | Codeforces | Codeforces Beta Round #30 (Codeforces format) | 9 | |

188 | Tetragon | Codeforces | Codeforces Beta Round #23 | 9 | |

189 | 3D Geometry | A2 Online Judge | 9 | ||

190 | Ruminations on Ruminants | Codeforces | Codeforces Round #334 (Div. 1) | 9 | |

191 | Max and Min | Codeforces | VK Cup 2015 - Finals, online mirror | 9 | |

192 | Randomizer | Codeforces | Codeforces Round #313 (Div. 1) | 9 | |

193 | Roland and Rose | Codeforces | Codeforces Round #262 (Div. 2) | 9 | |

194 | New Year Tree Decorations | Codeforces | Good Bye 2013 | 9 | |

195 | Ksusha and Square | Codeforces | Croc Champ 2013 - Round 2 | 9 | |

196 | The Last Hole! | Codeforces | Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) | 9 | |

197 | Little Elephant and Triangle | Codeforces | Codeforces Round #136 (Div. 1) | 9 | |

198 | Runaway to a Shadow | Codeforces | Codeforces Round #357 (Div. 2) | 9 | |

199 | Mouse | Timus | 9 | ||

200 | Intersect Until You're Sick of It | Timus | 9 | ||

201 | Light | Timus | 9 | ||

202 | Karen and Cards | Codeforces | Codeforces Round #419 (Div. 1) | 9 | |

203 | Goat in the Garden 4 | Timus | 9 | ||

204 | Wires | Timus | 9 | ||

205 | Triangle Game 2 | Timus | 9 | ||

206 | Triangle Game | Timus | 9 | ||

207 | Biscuits | Timus | 9 | ||

208 | Empire Strikes Back | Timus | 9 | ||

209 | The Mentaculus | Timus | 9 | ||

210 | Fire Signals | Timus | 9 | ||

211 | Non-Flying Weather | Timus | 9 | ||

212 | Cubes | Codeforces | Codeforces Round #150 (Div. 1) | 10 | |

213 | Planar Graph | Codeforces | Codeforces Round #138 (Div. 1) | 10 | |

214 | Spider | Codeforces | Codeforces Round #138 (Div. 1) | 10 | |

215 | Martian Colony | Codeforces | Codeforces Round #109 (Div. 1) | 10 | |

216 | Help Greg the Dwarf 2 | Codeforces | Codeforces Round #102 (Div. 1) | 10 | |

217 | Birthday | Codeforces | Codeforces Beta Round #94 (Div. 1 Only) | 10 | |

218 | Alternative Reality | Codeforces | Codeforces Beta Round #90 | 10 | |

219 | Darts | Codeforces | Codeforces Beta Round #83 (Div. 1 Only) | 10 | |

220 | Mogohu-Rea Idol | Codeforces | Codeforces Beta Round #73 (Div. 1 Only) | 10 | |

221 | Plane of Tanks | Codeforces | Codeforces Beta Round #66 | 10 | |

222 | Contact | Codeforces | Codeforces Beta Round #62 | 10 | |

223 | Vacuum ?leaner | Codeforces | Codeforces Beta Round #50 | 10 | |

224 | BerPaint | Codeforces | School Team Contest #2 (Winter Computer School 2010/11) | 10 | |

225 | Armistice Area Apportionment | Codeforces | CROC 2016 - Elimination Round | 10 | |

226 | New Year and Cake | Codeforces | Good Bye 2015 | 10 | |

227 | Cross Sum | Codeforces | Codeforces Round #336 (Div. 1) | 10 | |

228 | Cut Length | Codeforces | Educational Codeforces Round 1 | 10 | |

229 | BCPC | Codeforces | Codeforces Round #328 (Div. 2) | 10 | |

230 | Spectator Riots | Codeforces | Bubble Cup 8 - Finals [Online Mirror] | 10 | |

231 | Points in triangle | Codeforces | VK Cup 2015 - Wild Card Round 1 | 10 | |

232 | Triangles 3000 | Codeforces | Codeforces Round #296 (Div. 1) | 10 | |

233 | Gears | Codeforces | Codeforces Round #283 (Div. 1) | 10 | |

234 | Gena and Second Distance | Codeforces | Codeforces Round #253 (Div. 1) | 10 | |

235 | Playing the ball | Codeforces | Coder-Strike 2014 - Finals (online edition, Div. 1) | 10 | |

236 | Lightbulb for Minister | Codeforces | Codeforces Round #231 (Div. 2) | 10 | |

237 | Fox and Meteor Shower | Codeforces | Codeforces Round #228 (Div. 1) | 10 | |

238 | Cookie Clicker | Codeforces | Codeforces Round #222 (Div. 1) | 10 | |

239 | Inna and Babies | Codeforces | Codeforces Round #220 (Div. 2) | 10 | |

240 | Drawing Circles is Fun | Codeforces | Codeforces Round #219 (Div. 1) | 10 | |

241 | Looking for Owls | Codeforces | Codeforces Round #203 (Div. 2) | 10 | |

242 | Tennis Rackets | Codeforces | Croc Champ 2013 - Finals (online version, Div. 1) | 10 | |

243 | Polygon | Codeforces | Testing Round #6 | 10 | |

244 | Emperor's Problem | Codeforces | School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) | 10 | |

245 | DravDe saves the world | Codeforces | Codeforces Beta Round #28 (Codeforces format) | 10 | |

246 | Hongcow Draws a Circle | Codeforces | Codeforces Round #385 (Div. 1) | 10 | |

247 | Lada Malina | Codeforces | Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) | 10 | |

248 | Iron Man | Codeforces | Codeforces Round #366 (Div. 1) | 10 | |

249 | Mobile Life | Timus | 10 | ||

250 | Multishot in the Secret Cow Level | Timus | 10 | ||

251 | Winding Number | Timus | 10 | ||

252 | Interfering Segment | Timus | 10 | ||

253 | Goat in the Garden 6 | Timus | 10 | ||

254 | Boss, I Can See You! | Timus | 10 |