USACO Solutions
USA Computing Olympiad Solutions
Jieruei Chang
Contests
2022 December - Gold
Bribing Friends
2021 US Open - Silver
Acowdemia
Do You Know Your ABCs (Silver)
Maze Tac Toe
2020 December - Silver
Cowntagion
Stuck in a Rut (Silver)
2020 December - Bronze
Do You Know Your ABCs
Daisy Chains
Stuck in a Rut (Bronze)
Practice
snakes
angry
blocks
bracelet
hps
mixmilk
moocast
shell
speeding
split
teleport
timeline
ucfj
Chapter 1
1.2
Your Ride Is Here
Greedy Gift Givers
Friday The Thirteenth
Broken Necklace
1.3
Milking Cows
Transformations
Name That Number
Palindromic Squares
Dual Palindromes
1.4
Mixing Milk
Barn Repair
Prime Cryptarithm
Combination Lock
Wormholes
Ski Course Design
1.5
Arithmetic Progressions
Mother's Milk
1.6
Number Triangles
Prime Palindromes
SuperPrime Rib
Chapter 2
2.1
The Castle
Ordered Fractions
Sorting a Three-Valued Sequence
Healthy Holsteins
Hamming Codes
2.2
Preface Numbering
Subset Sums
Runaround Numbers
Party Lamps
2.3
The Longest Prefix
Cow Pedigrees
Zero Sum
Money Systems
Controlling Companies
2.4
The Tamworth Two
Overfencing
Cow Tours
Bessie Come Home
Fractions to Decimals
Chapter 3
3.1
Agri-Net
Stamps