제출 #736494

#제출 시각아이디문제언어결과실행 시간메모리
736494sq00XOR Sum (info1cup17_xorsum)C++14
0 / 100
71 ms12608 KiB
#include <bits/stdc++.h> using namespace std; int main() { cin.tie(0)->sync_with_stdio(0); // freopen("div7.in", "r", stdin); // freopen("div7.out", "w", stdout); int n; cin >> n; vector<int>v(n); vector<int>ae; for(int i = 0; i < n; i++) { cin >> v[i]; ae.push_back(v[i] * 2); if(i > 0) ae.push_back(v[i] + v[i - 1]); } int ans = 0; for(int i = 0; i < n; i++) { ans ^= ae[i]; } cout << ans; }
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