Codeforces Round #616 (Div. 2)B. Array Sharpening

关于这道题的题解报告 题目 题目大意 思路 解题步骤 代码块 题目 题目链接 B. Array Sharpeningios You’re given an array a1,…,an of n non-negative integers.web Let’s call it sharpened if and only if there exists an integer 1≤k≤n such tha

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