题目链接 You are given an array a of length 2n. Consider a partition of array a into two subsequences p and q of length n each (each element of array a should be in exactly one subsequence: either in p o
Dashboard - Codeforces Round #775 (Div. 2, based on Moscow Open Olympiad in Informatics) - CodeforcesCodeforces. Programming competitions and contests, programming communityhttps://codeforces.com/cont
Codeforces Round #626 (Div. 2, based on Moscow Open Olympiad in Informatics) A. Even Subset Sum Problem 题意:这一题就是给一个序列,问能这个序列的子集的和,能否为偶数 代码 #include<iostream>#include<vector>using namespace std