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Daily: 2026-10-18 — Reverse String - #6
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GAjay
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October 20, 2026 09:16
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Slug:
reverse-stringFolder:
problems/2026-10-18-reverse-string/Approach: Reverse the character array in place with two pointers at the start and end. Swap elements while
left < right, then move both pointers inward. No extra array allocation, so extra space is O(1).Tests (passed):
node --test problems/2026-10-18-reverse-string/reverse-string.test.jsnpm run test:ci