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"Educational Codeforces Round 63 (Rated for Div. 2)" D. Beautiful Array time limit per test 2 seconds memory limit per test 256 megabytes input standa 阅读全文
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Removal 链接：https://ac.nowcoder.com/acm/contest/139/E来源：牛客网 题目描述 Bobo has a sequence of integers s1, s2, ..., sn where 1 ≤ si ≤ k. Find out the number 阅读全文