23 lines
361 B
C++
23 lines
361 B
C++
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#include<bits/stdc++.h>
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using namespace std;
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int main(){
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int n;
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cin>>n;
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int a[n];
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for(int i=0;i<n;i++)
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cin>>a[i];
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int sum=0,num=0;
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for(int i=0;i<64;i++){
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sum=0;
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for(int j=0;j<n;j++){
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if(a[j]&(1<<i))
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sum++;
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}
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if(sum%3 !=0)
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num=(num|(1<<i));
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}
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cout<<num;
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}
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