Submission #755212

#TimeUsernameProblemLanguageResultExecution timeMemory
755212AliHasanliXOR Sum (info1cup17_xorsum)C++17
7 / 100
1667 ms12728 KiB
#include<bits/stdc++.h>
using namespace std;
int main (){
    long long ans=0;
    int n;
    cin>>n;
    long long a[n];
    for(int i=0;i<n;i++)
        cin>>a[i];
    for(int i=0;i<n;i++)
        for(int j=i;j<n;j++)
            ans^=(a[i]+a[j]);
    cout<<ans;
    return 0;
}
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