Skip to content

6,362 Problems. One Archive.
A challenge for every curious mind.

Explore decades of Topcoder problems. Read the statements, study the examples, and put your skills to the test.

Explore the problems

NotchedWoodBarsPuzzle

ArchivePractice problem

Algorithm problem

PendingTasks

ArchivePractice problem

Algorithm problem

FirstToLast

ArchivePractice problem

Algorithm problem

NumPermutationOrders

ArchivePractice problem

Algorithm problem

NumJordanForms

ArchivePractice problem

Algorithm problem

MaxKTrace

ArchivePractice problem

Algorithm problem

TextProcessor

ArchivePractice problem

Algorithm problem

StraightArray

ArchivePractice problem

Algorithm problem

EnclosingRectangle

ArchivePractice problem

Algorithm problem

SwitchingBits

ArchivePractice problem

Algorithm problem

5961–5970 of 6,362 problems

These pages preserve content from retired Topcoder services. Problem pages include public learning material; member submissions and performance data are not published.