AppliedAIPrep logoAppliedAI/Prep
← Coding & DSA / 49
hardGoogleMetaAmazon

Minimum Window Substring: the variable-size sliding window.

Minimum Window Substring is the hard sliding-window problem that tests expand-and-contract with a character-count map. The signal is the grow-to-valid then shrink-to-minimal pattern, checked in O(1) per step.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

Minimum Window Substring is the hard sliding-window problem that tests expand-and-contract with a character-count map. The signal is the grow-to-valid then shrink-to-minimal pattern, checked in O(1) per step.

Unlock the other 750 answers · ₹2,000 / $25Your progress and mastery stay saved · 6 months · one payment · no auto-renew
UP NEXT ON YOUR JOURNEY
Next in this trackHouse Robber: the pick-or-skip 1D DP.Next in this trackGroup Anagrams: the canonical-key hash-map pattern.Next in this trackImplement a precision-recall (or ROC) curve and AUC from scores and labels.
DISCUSSION · 0

No comments yet — be the first to share your approach.