Problems

Problem Category Points AC % Users ▾
DWITE '02 R2 #1 - Sales! DWITE 5 31.8% 91
COCI '13 Contest 5 #1 Lozinka COCI 3p 52.2% 91
SAC '22 Code Challenge 4 P4 - Obligatory Subarray Problem SAC Coding Challenge 10p 22.6% 91
Magic Sequence Olympiads School 7p 64.8% 91
IOI '13 P5 - Robots IOI 20p 18.3% 90
VMSS Pre-Pre-Windsor P4 - The New Kid Uncategorized 3 23.0% 90
Strategic Arrays Uncategorized 15p 32.2% 90
IOI '02 P2 - Utopia Divided IOI 20p 24.3% 90
COCI '09 Contest 5 #1 Sok COCI 3 53.8% 90
Hard Question Uncategorized 5 62.6% 90
COCI '20 Contest 6 #3 Anagramistica COCI 12p 44.6% 90
Age Demographic Uncategorized 5 25.4% 90
JOI '14 Open P5 - Pinball JOI 25p 26.0% 89
JOI '13 Open P3 - Watching JOI 15p 29.7% 89
GFSSOC '15 Fall S3 - System(0); GFSSOC 10p 22.6% 89
CCO '16 P2 - Splitting Hares CCO 15p 14.2% 89
Mock CCC '18 Contest 2 S5 - A Link/Cut Tree Problem Mock CCC 15p 23.1% 89
Valentine's Day '19 J5 - Falling in Love Uncategorized 7p 14.0% 89
CCO '96 P2 - SafeBreaker CCO 10 36.2% 89
DWITE '02 R2 #3 - The Game of Life DWITE 7 54.0% 89
COCI '21 Contest 2 #1 Kaučuk COCI 5p 75.2% 89
Yet Another Contest 7 P3 - No More Math Homework YAC 12p 16.2% 89
DMOPC '22 Contest 4 P2 - Fake Painting DMOPC 10p 18.5% 89
COCI '22 Contest 4 #1 7Krokods COCI 5p 59.6% 89
ECOO '13 R1 P3 - Hexudoku ECOO 7p 52.7% 88
Facebook Hacker Cup '15 Round 1 P4 - Corporate Gifting FHC 17 46.0% 88
ECOO '16 R2 P1 - Palindrome Panic ECOO 12p 14.7% 88
DMPG '18 B4 - Shimnanigans DMOPC 5p 27.7% 88
COCI '15 Contest 5 #4 Poplava COCI 12 33.2% 88
Triway Cup '19 Summer F - Race Seasonal 3 39.0% 88
James' Rectangles Uncategorized 10p 33.5% 88
DMOPC '20 Contest 1 P5 - Victor Takes Over Canada DMOPC 17p 11.2% 88
CCO '20 P4 - Travelling Salesperson CCO 25p 19.3% 88
2048 Uncategorized 15 3.1% 88
IOI '13 P2 - Art Class (Standard I/O) IOI 20p 2.7% 88
UCRPC F21 A - Senseless Census ICPC 5 65.5% 88
RGPC '17 P4 - Snow Day Uncategorized 10p 13.6% 87
COCI '07 Contest 5 #4 Avogadro COCI 15p 27.7% 87
DWITE '09 R2 #2 - Mini DWITE DWITE 3 31.5% 87
DWITE '12 R1 #1 - Candy Piles DWITE 3 35.9% 87
UTS Open '18 P4 - Ianine's Lil Lab Uncategorized 10p 28.8% 87
CCO '19 P1 - Human Error CCO 10p 31.2% 87
COCI '09 Contest 3 #3 Sort COCI 5 44.5% 87
NOI '04 P1 - The Depressed Cashier China NOI 20p 15.3% 87
WC '18 Contest 3 J3 - R Woburn Challenge 3p 73.0% 87
WC '15 Contest 3 J2 - Electroshock Therapy Woburn Challenge 5 52.4% 87
WC '01 P6 - Mission Impossible 3 Woburn Challenge 5p 17.7% 87
Wesley's Anger Contest 6 Problem 4 - Runway Lights WAC 12p 14.0% 87
BSSPC '22 P7 - Exec Team Applications Uncategorized 10p 22.9% 87
COCI '22 Contest 5 #1 Kalendar COCI 5p 44.3% 87