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Problem Category Points AC % Users ▴
Facebook Hacker Cup '15 Round 2 P3 - Autocomplete Strikes Back FHC 20 49.0% 22
CSPC '15 #4 - Reading Logs CSPC 5 11.5% 22
Executable Format Uncategorized 10 28.3% 22
DMOPC '14 Contest 5 P5 - Attack on Anti-Spiral DMOPC 25p 16.7% 22
DMPG '15 B6 - Bad S'mores DMOPC 10p 5.9% 22
DMOPC '15 Contest 3 P6 - Gala DMOPC 30p 11.3% 22
GFSSOC '15 Winter J4 - Christmas Music GFSSOC 5p 13.2% 22
GFSSOC '15 Winter S5 - ORBOT GFSSOC 15p 17.7% 22
CCCJQR P5 Seasonal 15p 21.0% 22
TLE '16 Contest 1 P6 - A Very Normal Test TLE 25p 19.6% 22
HCI '16 - Cheese Uncategorized 5p 38.7% 22
COCI '17 Contest 4 #3 Automobil COCI 7p 10.5% 22
Mock CCO '18 Contest 2 Problem 4 - Victor's Rectangles Mock CCO 20p 21.9% 22
DMPG '18 S6 - Mimi and Carrots DMOPC 17p 24.0% 22
UTS Open '18 P6 - Subset Sum Uncategorized 25p 16.1% 22
TLE 2018-19 P1 - Hello, World! Seasonal 20p 5.3% 22
COCI '18 Contest 2 #4 Maja COCI 15p 22.0% 22
CCO '97 P1 - Palindromes CCO 10 11.0% 22
ECOO '19 R2 P2 - Pizza ECOO 10p 23.9% 22
CCO '09 P1 - Invasion of the Boxes CCO 20p 12.8% 22
CCO '02 P1 - Spam CCO 12 49.1% 22
CEOI '16 P4 - Match CEOI 15p 19.9% 22
Brazilian IOI TST '19 Day 1 - Secret Santa Brazil OI 17p 20.5% 22
Magic Maze Uncategorized 17p 17.0% 22
Bitmask Magic Uncategorized 15p 30.0% 22
NOI '03 P1 - Stick Game China NOI 15p 20.3% 22
WC '15 Finals S1 - Fuzzbiz Woburn Challenge 7p 17.8% 22
WC '16 Contest 3 S4 - Replay Value Woburn Challenge 15p 14.7% 22
WC '98 P3 - Do or Do Not Woburn Challenge 10 35.3% 22
DMOJ Capture The Flag '20 F3 - Four Taps CTF 7 44.2% 22
Balkan OI '11 P6 - Trapezoids Balkan OI 20p 26.3% 22
IOI '20 P6 - Stations IOI 20p 14.5% 22
DMOPC '20 Contest 2 P5 - Majority Subarrays DMOPC 25p 6.6% 22
COCI '10 Contest 3 #4 Znanstvenik COCI 7p 41.8% 22
COCI '16 Contest 3 #5 Zoltan COCI 15p 15.2% 22
Segment Tree Practice 4 Uncategorized 17 43.6% 22
COCI '11 Contest 6 #5 Pastele COCI 12p 25.7% 22
COCI '12 Contest 4 #4 Razlika COCI 12p 39.4% 22
NOI '15 P3 - Sushi Dinner China NOI 25p 12.5% 22
NOI '21 P3 - Celebration China NOI 25p 9.7% 22
NOI '21 P4 - Quantum Communication China NOI 25p 9.4% 22
COI '15 #4 Torrent COCI 25p 35.2% 22
Cheerio Contest 1 J5 - Arithmetic Sequence Uncategorized 10p 5.6% 22
Baltic OI '06 P6 - Jump Baltic OI 7p 15.3% 22
Another Contest 9 Problem 4 - Alchemy ACC 10 13.0% 22
IOI '22 P5 - Rarest Insects IOI 30p 5.3% 22
NOIP '07 P3 - Removing Numbers from Matrix China NOI 15p 20.4% 22
DMOPC '22 Contest 3 P4 - Sketchy Cereal DMOPC 30p 4.9% 22
COCI '22 Contest 4 #4 Mreža COCI 20p 17.4% 22
CCO '23 P3 - Line Town CCO 30p 9.9% 22