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All topics›JavaScript›Sliding window

Minimum Window Substring

advancedlayer B5 · Sliding window5 tests

Write minWindow(s, t) returning the shortest contiguous slice of s that contains every character of t, counting repeats.

  • If t has two as, the window must contain at least two as
  • The characters may appear in any order, and extra characters in the window are fine
  • Return the empty string when no such window exists
  • The answer is unique in every case tested here

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