Scrambled Passcode Scan

medium

A security audit flags any keystroke log that contains a leaked passcode — even scrambled. The passcode counts as present if some contiguous chunk of the log is a rearrangement of it.

Given the passcode code and the log stream (both lowercase strings), return True if any permutation of code appears as a contiguous substring of stream, else False.

Example 1

in code = "ab", stream = "eidbaooo"

out True

"ba" is a permutation of "ab".

Example 2

in code = "ab", stream = "eidboaoo"

out False

An 'a' and 'b' exist but never adjacent.

Constraints

· 1 <= len(code), len(stream) <= 2000
· lowercase English letters only