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Problem Category Points AC % Users ▴
Singularity Cup P6 - Explosive Breakout Uncategorized 30p 19.7% 15
CCO Preparation Test 7 P2 - XOR Path Mock CCO 20p 13.5% 16
DMPG '16 G2 - Kabane Apocalypse DMOPC 20p 26.5% 16
IOI '97 P1 - Mars Explorer IOI 20p 12.8% 16
ICPC ECNA 2005 C - The Game of Efil ICPC 12 51.4% 16
ECOO '15 R2 P4 - Rectangle Roundup ECOO 12p 33.3% 16
ECOO '14 R2 P3 - EasySweeper ECOO 10p 42.3% 16
COCI '08 Contest 3 #4 Matrica COCI 20p 10.3% 16
IOI '17 P5 - Simurgh IOI 40p 12.1% 16
DWITE '08 R5 #3 - Working Directory DWITE 7 45.9% 16
DWITE '10 R1 #4 - Planting Trees DWITE 7 50.0% 16
DWITE '11 R4 #1 - Crossword Count DWITE 5 54.8% 16
TLE '17 Contest 6 P4 - Willson and Travelling TLE 15p 10.7% 16
TLE '17 Contest 6 P6 - 6 Friends TLE 15p 31.9% 16
IOI '11 P6 - Parrots IOI 20p 3.6% 16
COCI '17 Contest 2 #5 Usmjeri COCI 17 21.6% 16
CEOI '17 P3 - Mousetrap CEOI 25p 14.4% 16
CCO '99 P1 - You Can't Get There From Here CCO 7 26.5% 16
Mock CCO '19 Contest 1 Problem 6 - A Geometry Problem Mock CCO 15p 27.2% 16
CCO '02 P3 - Return To Blind Man's Bluff CCO 12 12.2% 16
Back To School '19: FFT Fun Seasonal 20p 14.6% 16
DMOPC '19 Contest 4 P6 - little_prince's Specialty Tea House DMOPC 25p 5.8% 16
GlobeX Cup '19 S5 - Alien Navigation Uncategorized 20p 7.4% 16
JSB '19 - P2 CTF 7 26.7% 16
DMOPC '19 Contest 4 P4 - Math Class DMOPC 15p 3.4% 16
PIB '20 P7 - Karnaugh Maps Uncategorized 15p 8.5% 16
Grid 3 Uncategorized 20 38.5% 16
WC '18 Contest 1 S4 - Bad Influence Woburn Challenge 15p 12.4% 16
NOI '11 P5 - NOI Carnival China NOI 25p 19.5% 16
IOI '99 P5 - Flatten IOI 15p 21.8% 16
Kevin Needs Help Uncategorized 20 29.4% 16
NOI '19 P5 - Landlords China NOI 25p 22.6% 16
WC '01 P5 - The Man With The Golden Eye Woburn Challenge 12 16.1% 16
WC '02 Suicidal P1 - Dark Lord Woburn Challenge 12 12.7% 16
Baltic OI '20 P3 - Joker Baltic OI 25p 14.9% 16
What a Niche Uncategorized 10p 13.3% 16
COI '09 #2 Kolo COCI 20p 17.7% 16
ICPC SWERC 2017 J - Frosting on the Cake ICPC 7 41.7% 16
World Tour Contest Problem 1 — Solar Eclipse Seasonal 5 1.6% 16
COCI '10 Contest 4 #4 Prosjek COCI 7p 19.8% 16
COCI '13 Contest 3 #5 Parovi COCI 12p 46.7% 16
COCI '17 Contest 3 #4 Portal COCI 12p 53.4% 16
COCI '12 Contest 6 #4 Burek COCI 12p 27.7% 16
COCI '17 Contest 5 #4 Karte COCI 15p 46.8% 16
ICPC NWERC 2011 A - Binomial Coefficients ICPC 10 24.7% 16
Dynamic Sum Uncategorized 15 14.6% 16
String Finding - Hacking Uncategorized 10 6.1% 16
COCI '21 Contest 2 #3 Hiperkocka COCI 20p 23.3% 16
DMOPC '21 Contest 8 P6 - Castle Building DMOPC 40p 8.9% 16
Baltic OI '14 P5 - Portals Baltic OI 15p 23.4% 16