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Problem Category Points ▾ AC % Users
COCI '15 Contest 7 #3 Ozljeda COCI 10 51.1% 36
COCI '09 Contest 3 #4 Razgovori COCI 10p 48.7% 109
ACM U of T Tryouts C3 E - A Brief Expedition ICPC 10 34.3% 67
ACM U of T Tryouts C2 C - Homemade Asteroids ICPC 10 19.5% 27
ACM U of T Tryouts C1 D - Reverse Fox Hunt ICPC 10 32.5% 64
ACM U of T Tryouts C3 C - A Subtle Surf ICPC 10 22.6% 72
NOI '14 P1 - Getting-Up Syndrome China NOI 10p 27.0% 153
NOI '00 P5 - Frogs Crossing the River China NOI 10p 29.7% 24
NOI '03 P2 - Text Editor China NOI 10p 23.8% 40
Good Predictions Uncategorized 10 33.0% 73
Good Strategy Uncategorized 10 25.0% 68
Good Aim Uncategorized 10 17.4% 31
PEG Test '11 - Cyclopian Puzzle Uncategorized 10 54.1% 352
A Game Uncategorized 10 29.9% 367
Counting Subsequences Uncategorized 10 21.5% 305
Bulgarian OI '09 P1 - Minesweeper Bulgarian OI 10 42.3% 65
PEG Test '14 - Spirits Uncategorized 10 10.5% 15
Graph Contest 1 P1 - Counting Paths Uncategorized 10 19.3% 93
Graph Contest 2 P2 - Directed Acyclic Graph Uncategorized 10 17.4% 393
Graph Contest 3 P2 - Shortest Path Uncategorized 10p 24.1% 287
Graph Contest 1 P3 - Counting Cycles Uncategorized 10 16.0% 113
IOI '94 P2 - The Castle IOI 10 18.8% 127
IOI '94 P4 - The Clocks IOI 10 27.2% 121
IOI '96 P4 - Sorting a Three-Valued Sequence IOI 10 31.9% 142
IOI '96 P1 - A Game IOI 10 39.3% 268
IOI '99 P1 - Little Shop of Flowers IOI 10 30.6% 204
IOI '04 P4 - Phidias IOI 10p 53.5% 884
ACSL '09 Contest 1 Senior - Bridge Uncategorized 10p 25.0% 15
ACSL '09 Contest 3 Senior - Pinochle Uncategorized 10p 34.1% 3
ACSL '09 Practice P3 - Zeroes Uncategorized 10 21.6% 126
ACSL '09 Practice P2 - Cars Uncategorized 10p 19.1% 36
ACSL '09 Practice P6 - Expression Uncategorized 10p 11.4% 29
SMAC 08/09 (Nov) #2 - Stock Market II Uncategorized 10p 7.6% 19
SMAC 08/09 (Oct) #2 - Digging for Gold Uncategorized 10 19.2% 53
SMAC 08/09 (Nov) #5 - Intelligent Stats Uncategorized 10p 40.7% 21
SMAC 08/09 (Nov) #1 - Befungulator Uncategorized 10 23.8% 20
CCO '03 P1 - BFed CCO 10 25.4% 61
CCO '08 P2 - King & Weber CCO 10p 17.6% 69
MMM '14 B - Benergy Transfer Uncategorized 10 40.5% 25
Mock CCC '14 J5 - Spacetime Surfer Mock CCC 10 30.0% 83
COCI '10 Contest 1 #5 Tabovi COCI 10p 51.7% 72
WC '01 P8 - Time to Get Medieval Woburn Challenge 10 38.1% 39
WC '02 P7 - Old Macdonald's Farm Woburn Challenge 10 27.5% 35
WC '15 Contest 1 S2 - Wildcat Wildcards Woburn Challenge 10p 11.2% 65
WC '15 Contest 3 S2 - Detective Work Woburn Challenge 10 36.9% 33
WC '15 Contest 1 J4 - Trip Budgeting Woburn Challenge 10 10.5% 40
WC '15 Finals S2 - Hydration Woburn Challenge 10p 26.9% 116
WC '16 Contest 2 S1 - Most Illogical Woburn Challenge 10p 29.0% 63
WC '15 Contest 3 J3 - Red Sun Simulator Woburn Challenge 10p 9.6% 25
WC '17 Contest 3 S1 - Mutual Friends Woburn Challenge 10p 35.9% 49