Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % Users ▴
Budget Uncategorized 3 39.5% 131
There's a Hole in the Bucket Uncategorized 7 57.4% 131
STNBD P3 - Rinslet Laurenfrost Uncategorized 5p 29.8% 132
COCI '07 Contest 1 #4 Zapis COCI 15p 13.3% 132
Educational DP Contest AtCoder R - Walk Uncategorized 15 63.5% 132
DWITE '02 R2 #5 - Now I know my ABCs DWITE 5 38.9% 132
IOI '14 P6 - Holiday (Standard I/O) IOI 30 12.2% 132
Another Contest 6 Problem 7 - Consonant or Vowel? ACC 0p 69.3% 132
Yet Another Contest 2 P2 - Secret Sequence YAC 7p 26.3% 132
GFSSOC '15 Fall Practice P3 - Bruno and Beads GFSSOC 5p 45.3% 133
COCI '07 Contest 2 #4 Turbo COCI 15p 41.2% 133
Another Contest 2 Problem 3 - Poutine ACC 15 26.9% 133
GlobeX Cup '18 J Sample - Farming Simulator Uncategorized 5p 38.0% 133
2-Dimensional Range Minimum Query Classics 17p 19.9% 133
Towers Uncategorized 3p 53.3% 133
IOI '09 P8 - Salesman IOI 25p 16.8% 133
WC '07 P3 - Strategy Meeting Woburn Challenge 10 20.2% 133
An Animal Contest 3 P5 - Monkey Canoe AAC 12p 18.3% 133
IOI '10 P5 - Memory IOI 5p 23.0% 134
DMOPC '15 Contest 4 P3 - Lethal DMOPC 7p 29.4% 134
CCCJQR P2 Seasonal 3 20.9% 134
LKP '18 Contest 2 P2 - Secret Signal Uncategorized 5 23.5% 134
APIO '09 P1 - Digging for Oil APIO 20p 17.1% 134
WC '18 Contest 1 J3 - Comparing Grades Woburn Challenge 5p 55.5% 134
COCI '13 Contest 5 #3 Eksplozjia COCI 10p 19.3% 134
VM7WC '15 #4 Bronze - Melanie's Cradles VM7WC 3 41.4% 135
COCI '06 Contest 6 #2 Magija COCI 5p 58.5% 135
IOI '10 P1 - Cluedo IOI 5p 36.1% 135
DWITE '12 R5 #2 - Copycat SMS DWITE 5 29.8% 135
DWITE '10 R1 #3 - Power tiles DWITE 5 68.7% 135
XOR Minimum Uncategorized 17p 36.2% 135
ACM U of T Tryouts C1 B - The Foxen's Treasure ICPC 5 20.1% 135
IOI '07 P2 - Flood IOI 25p 45.0% 135
An Animal Contest 4 P3 - Snowy Slopes AAC 10 20.6% 135
Cheerio Contest 1 J2 - Phys Ed Class Uncategorized 3 39.5% 135
Lyndon's Golf Contest 1 P2 - A Cube Problem Uncategorized 0p 56.1% 135
STNBD P4 - Ellis Fahrengart Uncategorized 17p 15.3% 136
DWITE '09 R5 #1 - ASCII bar graphs DWITE 3 66.2% 136
IOI '19 P1 - Arranging Shoes IOI 15p 16.4% 136
NOI '97 P4 - Perfect Tour China NOI 5 32.2% 136
DMOPC '21 Contest 8 P2 - Kanna Market DMOPC 10p 21.8% 136
CCO '22 P1 - Alternating Heights CCO 12p 27.4% 136
GFSSOC '15 Fall S5 - Raider GFSSOC 17p 14.0% 137
COCI '15 Contest 4 #4 Chewbacca COCI 12p 27.0% 137
TLE '16 Contest 3 P4 - Gaussian Elimination TLE 7p 30.6% 137
ICPC NAQ 2015 F - Quick Brown Fox ICPC 5 41.6% 137
Another Contest 4 Problem 10 - Two Rectangles ACC 0 56.5% 137
DMOPC '19 Contest 7 P3 - Tree Pruning DMOPC 12p 21.3% 137
COCI '09 Contest 4 #2 Planina COCI 5 53.8% 137
UCC Coding Competition '21 P4 - Trampoline Jump Uncategorized 7p 28.9% 137