제출 #649434

#제출 시각아이디문제언어결과실행 시간메모리
649434AZAxxXOR Sum (info1cup17_xorsum)C++14
7 / 100
1682 ms8732 KiB
#include <bits/stdc++.h> using namespace std; #define ll long long #define pb push_back int main(){ ll n; cin >> n; ll a[n]; for(ll &x : a) cin >> x; ll ans=0; for(int i=0; i<n; i++){ for(int j=i; j<n; j++) ans= (ans^(a[i]+a[j])); } cout << ans << endl; }
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