Problems

Problem Category Points ▴ AC % Users
Good Sets Uncategorized 10p 27.2% 32
Another Contest 9 Problem 4 - Alchemy ACC 10 13.0% 22
Baltic OI '04 P2 - Scales Baltic OI 10p 44.4% 4
Baltic OI '04 P5 - Rectangles Baltic OI 10p 10.0% 5
Baltic OI '03 P3 - Table Baltic OI 10p 9.1% 2
JOI '22 Final P1 - Intercastellar JOI 10p 56.0% 25
DMOPC '22 Contest 1 P2 - Hat Swap DMOPC 10p 24.0% 228
Baltic OI '01 P1 - Postman Baltic OI 10p 18.7% 25
Magic Bits Uncategorized 10p 13.1% 40
BSSPC '22 P6 - Permutations & Primogems Uncategorized 10p 16.8% 108
BSSPC '22 P7 - Exec Team Applications Uncategorized 10p 22.9% 87
Baltic OI '01 P6 - Teleports Baltic OI 10p 37.8% 24
Yet Another Contest 5 P2 - Big Score YAC 10p 13.0% 94
SGS Programming Challenge P2 - Vending Machine in Lunch Uncategorized 10p 12.2% 54
BSSPC '22 P8 - Bayview's RGB Gaming PC Uncategorized 10 26.9% 77
Yet Another Contest 7 P2 - Coprime Grid YAC 10p 22.4% 202
MCIPC Contest 2 P5 - Holiday Chocolates Uncategorized 10p 26.0% 7
Waterloo 2022 Fall A - Zero AAMP Currents Waterloo Local 10 62.5% 26
EGOI '22 P1 - SubsetMex EGOI 10p 36.8% 58
EGOI '22 P5 - Data Centers EGOI 10p 33.6% 31
Yet Another Contest 6 P3 - No More Cell Phone Messaging YAC 10p 13.1% 105
COCI '22 Contest 1 #2 Čokolade COCI 10p 24.0% 68
DMOPC '22 Contest 4 P2 - Fake Painting DMOPC 10p 18.6% 89
DMOPC '22 Contest 3 P2 - New Components DMOPC 10p 17.9% 161
COCI '22 Contest 2 #2 Ekspert COCI 10p 22.4% 95
NOIP '04 P3 - Chorus Formation China NOI 10p 29.6% 28
WOSS Dual Olympiad 2022 Team Round P3: Bobby and the Sidewalk Seasonal 10p 29.0% 42
NOIP '08 P2 - Expression by Matches China NOI 10p 52.5% 25
Mock CCC '23 1 S3 - Richard The Penguin Mock CCC 10p 5.9% 27
NOIP '22 P1 - Flower Planting China NOI 10p 29.0% 39
Mock CCC '23 2 S3 - Richard The Penguin Mock CCC 10p 3.9% 13
Waterloo 2023 Winter C - Sandpile on Clique Waterloo Local 10 31.0% 13
Waterloo 2023 Winter D - Link-Cut Tree Waterloo Local 10 69.6% 14
COCI '22 Contest 4 #2 Zrinka COCI 10p 36.1% 52
CCC '23 S3 - Palindromic Poster CCC 10p 15.4% 420
CCC '23 J5 - CCC Word Hunt CCC 10p 24.2% 532
Google Code Jam '22 Round 1C Problem A - Letter Blocks Google Code Jam 10p 19.0% 4
Google Code Jam '22 Round 1C Problem B - Squary Google Code Jam 10p 22.2% 5
Google Code Jam '09 Round 1A Problem C - Collecting Cards Google Code Jam 10p 60.0% 3
Google Code Jam '10 Qualification Round Problem C - Theme Park Google Code Jam 10p 40.0% 3
Google Code Jam '10 Round 1A Problem B - Make it Smooth Google Code Jam 10p 15.0% 3
Google Code Jam '14 Qualification Round Problem C - Deceitful War Google Code Jam 10p 40.0% 2
Google Code Jam '14 Round 1A Problem B - Full Binary Tree Google Code Jam 10p 75.0% 4
Google Code Jam '16 Round 1A Problem C - BFFs Google Code Jam 10p 66.7% 2
Google Code Jam '17 Qualification Round Problem C - Bathroom Stalls Google Code Jam 10p 66.7% 2
Google Code Jam '18 Round 1A Problem A - Waffle Choppers Google Code Jam 10p 66.7% 4
Google Code Jam '18 Round 1A Problem B - Bit Party Google Code Jam 10p 24.1% 5
Google Code Jam '19 Qualification Round Problem C - Cryptopangrams Google Code Jam 10p 12.2% 4
Google Code Jam '20 Round 1A Problem C - Square Dance Google Code Jam 10p 35.3% 5
Google Code Jam '22 Round 1B Problem B - Controlled Inflation Google Code Jam 10p 66.7% 4