Practice · judged on hidden tests
Problems
6 problems, ordered so each topic builds on the last.
- Not startedEvery arrangement of the letters, each one onceBacktracking, StringsMedium
- Not startedEvery subset, in orderBacktracking, ArraysMedium
- Not startedEvery way the brackets can balanceBacktracking, StringsMedium
- Not startedEvery way to make the targetBacktracking, ArraysMedium
- Not startedHow many ways the queens fitBacktrackingHard
- Not startedWord search IIBacktracking, Tries, GraphsHard