USACO
Solo. Four contest windows across the year.
About
The USA Computing Olympiad is a solo online contest. Three problems, four hours, on your own laptop. Everyone starts in Bronze and moves up by solving problems. Java, C++, and Python are all allowed. We hold practice sessions in the weeks before each contest window.
Details
Bronze
Where you start
Silver
Sorting, searching
Gold
Graphs, DP
Platinum
Olympiad track
Official site
Open the contest site.
Pay dues
RevTrak, Travis High School, Computer Science NHS.