245D - Restoring Table - CodeForces Solution

#include<iostream>
#include<vector>
using namespace std;
int main()
{
    int n; 
    cin>>n;
    int a[n][n], b[n];
    for (int i = 0; i < n; i++)
        {
            b[i]=0;
            for (int j = 0; j < n; j++)
                cin>>a[i][j];
        }
    for (int i = 0; i < n; i++) {
        for(int j=0; j<n; j++)
        if(i!=j)
        b[i]|=a[i][j];
    }
    for (int i = 0; i < n; i++) 
        cout<<b[i]<<" ";
        cout<<endl;
}