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Additional Practice for USACO Gold

Author: Nathan Wang

Final tips for Gold and additional practice problems.

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What Now?

After completing this section on the USACO Guide, you should be comfortable with the topics that have historically appeared in the USACO Gold division. In order to maximize your chance at promoting, you should aim to practice by doing more problems.

Uncategorized Problems

Below we list some problems that we think are roughly Gold level but don't really fit in previous modules. The difficulties listed here are relative to the Gold division (difficulty is subjective and isn't always accurate though). We'll be expanding this list as we get more problem suggestions.

StatusSourceProblem NameDifficultyTags
CF
Tenzing and Balls
Easy
Show TagsDP
Old Gold
Island Travels
Easy
Show TagsBFS, Bitmasks, DP
CF
Robot Collisions
Easy
Show TagsSorting, Stack
Old Gold
Cow Decathlon
Easy
Show TagsBitmasks, DP
CF
The Sports Festival
Easy
Show TagsRange DP
CF
Jeopardized Projects
Normal
Show TagsCombinatorics, Prefix Sums
CF
Yet Another Minimzation Problem 2
Normal
Show TagsDP, Knapsack, Math
CF
Fossil Excavation
Normal
Show TagsBitmasks, DP, SP
CF
Different Arrays
Normal
Show TagsDP
Old Silver
What's Up With Gravity?
Normal
Show TagsBFS
Gold
Telephone
Normal
Show TagsBFS
CF
Palindromic Characteristics
Normal
Show TagsDP, Hashing
Gold
Cow Navigation
Normal
Show TagsBFS
Gold
Bessie's Dream
Normal
Show TagsBFS
CF
Flood Fill
Normal
Show TagsDP
CF
MST Unification
Normal
Show TagsDSU, MST
Kattis
Studentsko
Normal
Show TagsDP, LIS
CF
Monsters
Normal
Show TagsDSU, Greedy, Set
CF
Cross Swapping
Hard
Show TagsDSU
OII
Training on ChinaForces
Hard
Show TagsDivide and Conquer, Stack
AC
Cubic?
Hard
Show TagsHashing, Prime Factorization
CF
Power Tower
Very Hard
Show TagsDivisibility, Math, Number Theory
POI
Sums
Insane
Show TagsSP

Final Thoughts

Refer to our FAQ to find more problems to practice. You may also find the How to Practice module worth reading. Best of luck on future contests!

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