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Given day, month, and year, determine which weekday that date falls on (one of Sunday–Saturday) by applying calendar arithmetic (e.g., Zeller's congruence) or a library routine, taking care of month/year adjustments and leap-year rules; dates are valid and lie between 1971 and 2100.
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Microsoft
Leetcode 1185. Day of the Week
Reported Dec 27, 2025 · 1 source report
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Source snapshot: Nov 12, 2026
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