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Problem Category Points AC % ▾ Users
SMAC 08/09 (Oct) #2 - Digging for Gold Uncategorized 10 19.2% 53
CCO '18 P5 - Boring Lectures CCO 20p 19.2% 126
CCC '01 S4 - Cookies CCC 10 19.2% 418
CCC '17 S5 - RMT CCC 20p 19.2% 245
JSB '19 - P5 CTF 15 19.2% 9
ACSL '09 Practice P2 - Cars Uncategorized 10p 19.1% 36
WC '17 Contest 4 S1 - Wakandan Sabotage Woburn Challenge 10p 19.1% 26
COCI '07 Contest 1 #6 Staza COCI 25p 19.1% 28
CCO '97 P6 - Aligning DNA CCO 7 19.1% 11
DMOPC '20 Contest 7 P2 - Alice and Tiles DMOPC 10p 19.1% 57
Bubble Cup V9 D Potions homework Bubble Cup 5 19.1% 242
IOI '11 P4 - Crocodile's Underground City (Standard I/O) IOI 17p 19.1% 374
DMOPC '14 Contest 7 P2 - Tides DMOPC 5p 19.1% 727
COCI '23 Contest 2 #3 Dizalo COCI 17p 19.1% 16
TSOC '16 Contest 2 #4 - Bob's Primes TSOC 7 19.1% 85
CCO '16 P5 - Zombie Apocalypse CCO 15p 19.1% 141
ICPC ECNA 2000 B - Poly-polygonal Numbers ICPC 12 19.0% 4
MNYC '17: Bells Seasonal 17p 19.0% 62
Baltic OI '06 P2 - Coin Collector Baltic OI 12 19.0% 24
Mock CCC '23 2 S4 - Roger Says Yabe Mock CCC 15p 19.0% 7
Google Code Jam '09 Qualification Round Problem C - Welcome to Code Jam Google Code Jam 7p 19.0% 4
CCO '11 P2 - Vampire Tunnels CCO 15p 19.0% 320
DMOPC '15 Contest 3 P5 - Total Annihilation DMOPC 15p 19.0% 98
Back To School '18: Letter Frequency Seasonal 7p 19.0% 543
CCO '21 P4 - Travelling Merchant CCO 25p 19.0% 54
CCC '02 S2 - Fraction Action CCC 5 19.0% 1882
COCI '14 Contest 2 #5 Šuma COCI 20p 19.0% 64
Postfix Notation Uncategorized 7 19.0% 685
Spring Coding Bowl '22 P1 - Student Numbers Uncategorized 3 19.0% 79
DMOPC '16 Contest 3 P6 - Long Lost Love DMOPC 17p 18.9% 37
Yet Another Contest 5 P1 - Number Pyramid YAC 7p 18.9% 186
New Year's '16 P7 - Old Christmas Lights Seasonal 17p 18.9% 125
A Coin Problem Uncategorized 12p 18.9% 297
Baltic OI '12 P5 - Melody Baltic OI 17p 18.9% 7
NOI '23 P5 - String China NOI 25p 18.9% 7
Age Demographic Uncategorized 5 18.9% 112
DMOPC '20 Contest 6 P3 - Bread Merchant DMOPC 10p 18.9% 116
A Math Contest P13 - Ways Uncategorized 17 18.9% 28
Another Contest 8 Problem 5 - U-Turn Finesse ACC 15 18.9% 81
DMOPC '17 Contest 3 P3 - N-Kat DMOPC 10p 18.9% 84
COCI '14 Contest 4 #5 Sabor COCI 15p 18.9% 83
TLE '15 P5 - Prefix Sum Array TLE 15p 18.9% 125
DMOPC '15 Contest 7 P3 - Harbourmaster DMOPC 7p 18.9% 80
Another Random Contest 1 P2 - Two Sequences Uncategorized 7p 18.9% 43
Checker Number Uncategorized 7 18.8% 29
CCC '06 S5 - Origin of Life CCC 15 18.8% 118
COCI '10 Contest 4 #4 Prosjek COCI 7p 18.8% 15
SAC '22 Code Challenge 4 Junior P4 - Obligatory Permutation Problem SAC Coding Challenge 7p 18.8% 98
An Animal Contest 3 P2 - Monkey Potato AAC 5p 18.8% 556
IOI '94 P2 - The Castle IOI 10 18.8% 127