Problems

Problem Category Points AC % ▾ Users
COCI '06 Contest 4 #1 Sibice COCI 3 61.1% 366
Problem-setting Pandemonium (Junior) Mock CCC 3p 61.0% 427
ECOO '14 R3 P2 - Mothers and Daughters ECOO 7p 60.9% 59
WC '18 Contest 4 J1 - A Fistful of Quarters Woburn Challenge 3p 60.9% 62
DMOPC '16 Contest 3 P0 - Negative Feedback DMOPC 3 60.7% 367
BlueBook - Multiple BlueBook 3 60.7% 1038
CCC '17 J1 - Quadrant Selection CCC 3 60.6% 3262
Ternary Search Tree Uncategorized 5 60.6% 11
Mock CCC '18 Contest 3 J1 - A Sum Problem Mock CCC 3p 60.6% 350
ECOO '21 P2 - DNA Derren ECOO 3p 60.5% 190
DWITE '12 R1 #2 - Candybar Graphs DWITE 5 60.4% 25
WC '18 Contest 3 J1 - An Honest Day's Work Woburn Challenge 3p 60.4% 285
COCI '17 Contest 2 #1 Košnja COCI 3 60.4% 56
COCI '06 Contest 1 #1 Modulo COCI 3 60.1% 909
Poke Problem Uncategorized 7 60.0% 15
DWITE '09 R3 #4 - Spiral Out DWITE 7 60.0% 6
DWITE '09 R3 #5 - Up To Four Colours DWITE 12 60.0% 34
Valentine's Day '19 J2 - Pink! Uncategorized 3p 60.0% 397
WC '98 P1 - Optical Recognition Woburn Challenge 10 60.0% 3
COCI '12 Contest 2 #4 Popust COCI 10p 60.0% 2
WC '01 P3 - Back to the Future Woburn Challenge 5 59.9% 103
COCI '07 Contest 6 #1 Parking COCI 5 59.8% 202
Another Contest 8 Problem 1 - Trash Push Uncategorized 3 59.8% 167
WC '17 Contest 4 J2 - Anger Management Woburn Challenge 5 59.8% 51
DWITE '08 R2 #2 - My favourite digit DWITE 3 59.8% 227
IOI '94 P1 - The Triangle IOI 7p 59.8% 1115
Necroposting Uncategorized 5 59.6% 25
Firebending Uncategorized 3 59.5% 283
COCI '14 Contest 1 #1 Prosjek COCI 5p 59.5% 229
Machined Surfaces Uncategorized 5 59.4% 57
COCI '06 Contest 3 #1 Patuljci COCI 5 59.3% 455
COCI '17 Contest 3 #1 Aron COCI 3 59.3% 15
ECOO '13 R2 P4 - Breaking Rocks ECOO 10p 59.1% 10
DWITE '08 R1 #2 - Simple Checksum DWITE 3 58.9% 66
Towers Uncategorized 3p 58.9% 67
COCI '06 Contest 3 #3 Trojke COCI 7 58.9% 107
ICPC SWERC 2017 J - Frosting on the Cake ACM-ICPC 7 58.8% 8
CCC '06 S2 - Attack of the CipherTexts CCC 5 58.7% 1261
Bob's Temple Uncategorized 5 58.7% 32
Wesley's Anger Contest 3 Problem 1 - Snow Day Predictor WAC 3 58.7% 257
IOI '04 P4 - Phidias IOI 10p 58.7% 278
WC '18 Contest 4 J2 - Life Insurance Woburn Challenge 5p 58.7% 27
COCI '08 Contest 5 #6 Kruska COCI 10p 58.6% 18
DWITE '07 R2 #1 - Not Quite Prime DWITE 5 58.6% 253
WC '17 Contest 4 J3 - The Infinity Stones Woburn Challenge 3p 58.5% 91
COCI '06 Contest 6 #1 Prase COCI 5p 58.5% 259
COCI '10 Contest 1 #5 Tabovi COCI 15p 58.4% 34
CCC '21 J1 - Boiling Water CCC 3p 58.4% 836
COCI '10 Contest 1 #2 Profesor COCI 5p 58.3% 6
DMPG '19 B1 - Registration DMOPC 3 58.3% 279