Submission #685300

#TimeUsernameProblemLanguageResultExecution timeMemory
685300AiperiiiXOR Sum (info1cup17_xorsum)C++14
7 / 100
1676 ms8808 KiB
#include <bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    vector <int> a(n);
    for(int i=0;i<n;i++){
        cin>>a[i];
    }
    long long ans=0;
    for(int i=0;i<n;i++){
        for(int j=i;j<n;j++){
            long long x=a[i]+a[j];
            ans^=x;
        }
    }
    cout<<ans;
}
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