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Add sliding-window module: 12 sliding window and two-pointer interview problems, brute-force cross-checks, dry-run traces, operation counts, pitfalls (11 tests)

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Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_017ic4b6EqSkUWKNBc8i3Q3U
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asmhatre
2026-11-09 08:40:07 +00:00
co-authored by Claude Sonnet 5.5
parent 4a9021d936
commit 911aef5515
26 changed files with 1600 additions and 0 deletions
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sliding-window/output/03-min-window-trace.txt
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Minimum window substring: s="ADOBECODEBANC" t="ABC"
===================================================
right=5 'C' window="ADOBEC" is VALID
new best "ADOBEC" (length 6)
drop 'A' -> window="DOBEC" no longer valid, missing=1
right=10 'A' window="DOBECODEBA" is VALID
drop 'D' -> window="OBECODEBA" still valid
drop 'O' -> window="BECODEBA" still valid
drop 'B' -> window="ECODEBA" still valid
drop 'E' -> window="CODEBA" still valid
drop 'C' -> window="ODEBA" no longer valid, missing=1
right=12 'C' window="ODEBANC" is VALID
drop 'O' -> window="DEBANC" still valid
drop 'D' -> window="EBANC" still valid
new best "EBANC" (length 5)
drop 'E' -> window="BANC" still valid
new best "BANC" (length 4)
drop 'B' -> window="ANC" no longer valid, missing=1
answer = "BANC"