educational round array-阿里云

Educational Codeforces Round 110 (Rated for Div. 2)---B. Array Reodering（900水+奇偶判断）

题意：求1<=m<j，gcd(a[i],2a[j])>1的最大下标对数思路：将偶数放前面，后面的数一定都可以对答案做出贡献，然后暴力跑奇数的情况即可.#include<bits/stdc++.h> using namespace std; const int maxn&...

Educational Codeforces Round 21 D.Array Division(二分)

D. Array Division time limit per test:2 seconds memory limit per test:256 megabytes input:standard input output:standard output Vasya has an array a c...

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更新时间 2024-02-28 11:18:09

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