Submission #1147178

#TimeUsernameProblemLanguageResultExecution timeMemory
1147178feyzaXOR Sum (info1cup17_xorsum)C++20
7 / 100
1695 ms8008 KiB
#include <bits/stdc++.h> using namespace std; void speed() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); } const int maxn=1e6+6; int n; long long v[maxn],ans=0; void read() { cin>>n; for(int i=1;i<=n;i++)cin>>v[i]; for(int i=1;i<=n;i++) { for(int j=i;j<=n;j++) ans^=(v[i]+v[j]); } cout<<ans<<endl; } int main() { speed(); read(); return 0; }
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