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Still to clear · 8 of 8
- Trace: keep the table
- Which line crashes?
- Write: menu from two lists
- Write: total a bill
- Debug: cheapest item
- Write: items under a budget
- Write: who sits where
- Write: apply price changes
Preview · where this ladder is heading
Number of islands
A map is a grid of strings: "1" is land and "0" is water. Land cells that touch horizontally or vertically (not diagonally) belong to the same island. Everything outside the grid is water. Return how many islands there are.
ingrid = [["1","1","0"],["1","0","0"],["0","0","1"]]out2
ingrid = [["1","0","1","0","1"]]out3
ingrid = [["0","0"],["0","0"]]out0
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