제출 #360629

#제출 시각아이디문제언어결과실행 시간메모리
360629tengiz05XOR Sum (info1cup17_xorsum)C++17
45 / 100
718 ms1772 KiB
#include <bits/stdc++.h> #pragma GCC optimize("Ofast,unroll-loops") #pragma GCC target("avx,avx2,fma") using namespace std; const int MAXN = 1e5+5; int n; int a[MAXN]; signed main(){ ios_base::sync_with_stdio(false);cin.tie(NULL); cin >> n; for(int i=0;i<n;i++){ cin >> a[i]; } int ans = 0; for(int i=0;i<n;i++){ for(int j=i;j<n;j++){ ans ^= a[i] + a[j]; } }cout << ans << '\n'; return 0; }
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