mediumNeetCode 150
Interleaving String
Check if s3 is formed by interleaving s1 and s2 Example: s1 = "aabcc", s2 = "dbbca", s3 = "aadbbcbcac" => true Interleaving: "aa" + "dbbc" + "bc" + "a" + "c" Example: s1 = "aabcc", s2 = "dbbca", s3 = "aadbbbaccc" => false
I walk a grid, not a string. Row index consumed from one word, column from the other, each cell asking who supplied the last letter.

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1Check If String Is Interleavedmedium
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