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Problem Category Points AC % Users
CCCHK '15 J1 - Rock-paper-scissors CCC 3p 52.5% 972
CCCHK '15 J2 - What is the minimum area? CCC 5p 36.2% 314
CCCHK '15 J3 - Queens can't attack me! CCC 5p 50.9% 731
CCCHK '15 J4 - Where to build my house? CCC 5p 19.3% 340
CCCHK '15 J5 - No friends in the same group. CCC 15p 9.7% 40
CCCHK '15 S1 - Finding number of pairs CCC 7p 15.9% 222
CCCHK '15 S2 - Matching Problem CCC 10p 9.2% 54
CCCHK '15 S3 - Symmetric Cross CCC 12p 22.5% 41
CCCHK '15 S4 - When to meet? CCC 15p 32.0% 35
CCCHK '15 S5 - Can I pass the courses? CCC 25p 5.7% 10
Homer Simpson Uncategorized 3 29.5% 44
HopScotch II Classics 12p 23.8% 210
Hungry Uncategorized 5p 45.5% 125
The Hu Tao Fractal Uncategorized 7p 17.4% 14
Icebergs Uncategorized 12p 19.3% 57
ICHB Selection Contest '17 Problem 1 - Airship Fights (Correct Version) Uncategorized 30p 7.7% 3
ICHB Selection Contest '17 Problem 2 - Black Star's Visit Uncategorized 7p 8.9% 28
ICHB Selection Contest '17 Problem 3 - Parallel Universe Uncategorized 12p 23.0% 171
Word Scrambler Uncategorized 5 49.8% 795
Imaginary Units Uncategorized 10p 25.6% 5
Inaho X Uncategorized 7p 33.9% 13
Inaho XI Uncategorized 5p 44.7% 31
Inaho II Uncategorized 25p 13.5% 32
Inaho III Uncategorized 17p 18.7% 33
Inaho IV Uncategorized 5p 48.6% 166
Inaho V Uncategorized 3p 19.3% 222
Inaho VI Uncategorized 10p 31.5% 44
Inaho VII Uncategorized 25p 24.6% 9
Inaho VIII Uncategorized 20 26.7% 11
Inaho IX Uncategorized 20p 25.3% 55
Infinity Uncategorized 3 36.0% 568
Cosmic Inflation Uncategorized 7 46.7% 31
Count The Triplets Uncategorized 7 11.6% 214
Intervals Uncategorized 10p 21.0% 117
Expected Inversions Uncategorized 12p 30.9% 27
A Permutation Problem 2 Uncategorized 12 30.4% 25
IOI '00 P1 - Palindrome IOI 10p 18.6% 918
IOI '00 P2 - Car Parking IOI 15p 19.5% 66
IOI '00 P4 - Walls IOI 12 37.3% 336
IOI '00 P5 - Post Office IOI 15p 42.5% 203
IOI '00 P6 - Building with Blocks IOI 20p 8.8% 12
IOI '01 P1 - Mobile Phones IOI 15p 27.1% 762
IOI '01 P2 - Ioiwari Game IOI 12p 33.8% 12
IOI '01 P3 - Twofive IOI 25p 17.3% 70
IOI '01 P6 - Depot IOI 30p 13.2% 43
IOI '02 P1 - The Troublesome Frog IOI 15p 15.6% 91
IOI '02 P2 - Utopia Divided IOI 20p 25.9% 101
IOI '02 P4 - Batch Scheduling IOI 20p 37.6% 384
IOI '02 P5 - Bus Terminals IOI 30p 15.2% 56
IOI '03 P2 - Comparing Code IOI 25p 17.8% 33