Practice · judged on hidden tests
Problems
8 problems, ordered so each topic builds on the last.
- Not startedBlank out every row and column holding a zeroMatrices, ArraysMedium
- Not startedCount the islandsMatrices, GraphsMedium
- Not startedHow long until every orange has gone badMatrices, Graphs, Stacks and queuesMedium
- Not startedHow many separate groups of friendsMatrices, GraphsMedium
- Not startedHow many ways down through the gridDynamic programming, Matrices, ArraysMedium
- Not startedRead the grid in a spiralMatrices, ArraysMedium
- Not startedThe cheapest way down through the gridDynamic programming, Matrices, ArraysMedium
- Not startedTurn the square a quarter turnMatrices, ArraysMedium