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Problem Category Points AC % Users ▾
DMOPC '20 Contest 5 P6 - Top Row DMOPC 35p 3.1% 5
BSSPC '21 S5 - James Solves His Tree Problems Uncategorized 25p 2.1% 5
NOIP '18 P5 - Grid-filling Game China NOI 20p 15.4% 5
NOIP '18 P6 - Defending the Kingdom China NOI 25p 13.0% 5
Baltic OI '07 P4 - Building a Fence Baltic OI 12p 19.2% 5
Mock CCC '22 2 S5 - Kaguya Wants to go Window Shopping with Kei Shirogane Mock CCC 30p 5.5% 5
Baltic OI '10 P1 - BEARs Baltic OI 15 30.4% 5
COI '15 #3 Relay COCI 30p 20.7% 5
NOI '22 Multi-Provincial Team Selection P2 - Tree China NOI 25p 10.5% 5
NOI '22 Multi-Provincial Team Selection P4 - Card China NOI 25p 12.9% 5
Guess the Wordle Uncategorized 10 18.1% 5
Baltic OI '03 P1 - Barrel Baltic OI 10p 9.4% 5
Rule of Lemons Uncategorized 10 16.7% 5
Baltic OI '12 P3 - Peaks Baltic OI 17p 31.3% 5
Baltic OI '12 P4 - Fireworks in RightAngleles Baltic OI 25p 70.0% 5
Baltic OI '04 P5 - Rectangles Baltic OI 10p 10.0% 5
IOI '12 P5 - Last Supper IOI 30p 25.0% 5
NOI '16 P1 - Good Partitions China NOI 20p 7.8% 5
JOI '22 Spring Camp Day 1 P1 - Jail JOI 30p 26.5% 5
DMOPC '22 Contest 4 P6 - K-Sort DMOPC 30p 5.4% 5
Google Code Jam '22 Round 1C Problem B - Squary Google Code Jam 10p 22.2% 5
Google Code Jam '09 Qualification Round Problem A - Alien Language Google Code Jam 5p 63.6% 5
Google Code Jam '10 Round 1A Problem A - Rotate Google Code Jam 7 50.0% 5
Google Code Jam '14 Qualification Round Problem A - Magic Trick Google Code Jam 5p 62.5% 5
Google Code Jam '16 Qualification Round Problem A - Counting Sheep Google Code Jam 5p 35.0% 5
Google Code Jam '17 Qualification Round Problem A - Oversized Pancake Flipper Google Code Jam 5p 35.7% 5
Google Code Jam '18 Round 1A Problem B - Bit Party Google Code Jam 10p 24.1% 5
Google Code Jam '20 Qualification Round Problem B - Nesting Depth Google Code Jam 5p 50.0% 5
Google Code Jam '20 Round 1A Problem C - Square Dance Google Code Jam 10p 35.3% 5
Google Code Jam '21 Round 1A Problem A - Append Sort Google Code Jam 7p 35.0% 5
Another Contest 10 Problem 1 - Wesley's Anger Contest 7 Problem 1 - Ideology ACC 0p 2.1% 5
Counting Problem Uncategorized 17 45.5% 5
JOI '23 Open P3 - Garden JOI 12p 9.4% 5
NOI '23 P2 - Osmanthus Tree China NOI 25p 26.3% 5
HHPC1 P6 - Yarn Street's Strategic Shopping Uncategorized 20p 8.4% 5
COCI '23 Contest 3 #4 Restorani COCI 20p 9.6% 5
COCI '23 Contest 4 #3 Lepeze COCI 25p 9.1% 5
COCI '13 Contest 1 #6 Slastičar COCI 20p 11.8% 4
GCC '16 P2 - Classified Documents Uncategorized 15p 10.9% 4
ICPC ECNA 2016 J - Yes, Yes, It's Nonograms ICPC 20 50.0% 4
ICPC NAQ 2015 A - All About That Base ICPC 7 6.8% 4
HCI '16 - BinaryBomb Uncategorized 17p 50.0% 4
ICPC ECNA 2000 A - Picnic Planning ICPC 15 5.2% 4
ICPC ECNA 2000 B - Poly-polygonal Numbers ICPC 12 19.0% 4
ICPC ECNA 2000 E - Checker's Check ICPC 15 12.2% 4
ICPC ECNA 2000 F - To Bet or Not To Bet ICPC 10 29.4% 4
Bubble Cup V8 A Fibonotci Bubble Cup 25 6.1% 4
Bubble Cup V8 I Robots protection Bubble Cup 30 13.8% 4
Waterloo 2017 Fall E - English Waterloo Local 15p 66.7% 4
TLE '17 Contest 7 P6 - Base Bombing TLE 25p 11.3% 4