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Problem Category Points AC % Users ▾
CCO '19 P2 - Sirtet CCO 20p 24.2% 80
WC '17 Contest 3 J2 - Certified Fresh Woburn Challenge 5 49.4% 80
Mock CCC '21 S3 - Lexicographically Smallest Permutation Subsequence Mock CCC 10p 8.4% 80
DMOPC '15 Contest 6 P1 - Double XP Weekend DMOPC 5 22.6% 79
Back To School '16: Textbooks Seasonal 20p 23.0% 79
IOI '13 P6 - Game IOI 25p 9.2% 79
RTE '16 S1 - Battery Pyramids Uncategorized 7p 31.8% 79
Back From Summer '17 P3: Basketball Dodgeball Seasonal 7 19.4% 79
DWITE '09 R7 #3 - Oil Spill Area DWITE 7 55.0% 79
COCI '18 Contest 6 #3 Sličice COCI 10p 52.5% 79
Mynerva Olympiads School 7p 18.4% 79
Mock CCC '20 Contest 2 S3 - Tree Programming Mock CCC 10p 15.5% 79
ECOO '20 P4 - Ring ECOO 12p 17.3% 79
NOI '06 P4 - Maximum Profit China NOI 20p 26.3% 79
WC '02 P4 - It's Party Time Woburn Challenge 5 21.9% 79
CCO '03 P6 - Cheap Gas CCO 20p 13.1% 79
COCI '12 Contest 6 #3 Dobri COCI 7p 30.0% 79
SAC '22 Code Challenge 2 P3 - Rating Choices SAC Coding Challenge 7 37.2% 79
Factorial Calculator TLE 7p 18.3% 79
SAC '22 Code Challenge 5 Junior P5 - English Summative SAC Coding Challenge 10p 26.5% 79
MCIPC Contest 1 P1 - Factoring Uncategorized 3 25.7% 79
Mock CCC '15 J4 - Vox in Box Mock CCC 7p 18.3% 78
CCO '11 P6 - Biggest (Zero Carbon) Footprint CCO 15p 12.6% 78
DMPG '15 G6 - Yōkan DMOPC 17p 10.8% 78
Mock CCO '18 Contest 1 Problem 6 - A Combining Problem Mock CCO 15p 17.6% 78
New Year's '19 P3 - Santa's Journey Seasonal 7 7.1% 78
IOI '02 P1 - The Troublesome Frog IOI 15p 16.5% 78
Returning Home Uncategorized 10 23.5% 78
DMOPC '21 Contest 2 P3 - Divisions DMOPC 12p 8.8% 78
CCC '99 S5 - Letter Arithmetic CCC 12 16.0% 77
COCI '16 Contest 1 #3 Cezar COCI 10p 18.0% 77
COCI '15 Contest 6 #4 Parovi COCI 12p 39.4% 77
CEOI '18 P1 - Cloud Computing CEOI 15p 34.0% 77
DMOPC '19 Contest 4 P3 - Taking Cues DMOPC 12p 20.0% 77
NOI '14 P4 - Zoo China NOI 15p 27.8% 77
DWITE '06 R5 #1 - Points on a Line DWITE 7 36.3% 77
Diagnostic Test '16 Level 2 P2 - Gibe clays Uncategorized 3 33.7% 77
GFSS Christmas Challenge P3 - Candy Distribution GFSSOC 5p 29.1% 77
COCI '21 Contest 3 #2 Cijanobakterije COCI 10p 41.0% 77
BSSPC '22 P8 - Bayview's RGB Gaming PC Uncategorized 10 26.9% 77
ECOO '14 R1 P1 - Martian Time ECOO 5p 26.5% 76
Halloween '14 P3 - Dog Girls Seasonal 15p 12.3% 76
TLE '16 Contest 4 P2 - Shepherding TLE 7p 13.9% 76
HCI '16 - Xorpow Uncategorized 10p 23.8% 76
CCO '18 P3 - Fun Palace CCO 30p 18.1% 76
Another Contest 1 Problem 2 - Graphs ACC 15 6.5% 76
CPC '19 Contest 1 P3 - Admiral Kuznetsov Uncategorized 12p 15.8% 76
CCO '09 P6 - A Weighty Problem CCO 12p 16.1% 76
A Sum Problem Olympiads School 12p 13.0% 76
Ray's Tricky Connectivity Uncategorized 10p 22.2% 76