PUMaC 2021 · 个人决赛（B 组） · 第 2 题
PUMaC 2021 — Individual Finals (Division B) — Problem 2
题目详情
- Let p be an odd prime. Prove that for every integer k , there exist integers a, b such that 2 2 p | a + b − k .
解析
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Original Explanation
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