Maximal Rectangle

Flood Fill

Number of Islands

Search a 2D Matrix 1 - Elements sorted row-wise and first integer of each row is greater than last element of previous row is greater than last element of previous row

Unique Paths in Grid 2 - Count all paths moving right or down with obstacles

Spiral Matrix 2 - Generate

Count Sub Islands

Dungeon Game

Minimum Number of Days to Disconnect Island

Node With Highest Edge Score

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