蒟蒻求助！2,9,10TLE！

#include<bits/stdc++.h>
using namespace std;
long long n,x,y,t;
int main()
{
    cin>>n;
    while(t!=n*n)
    {
        cin>>x>>y;
        for(int j=1;j<=x;j++)
        {
            t++;
            cout<<"0";
            if(t%n==0)
                cout<<"\n";
        }
        for(int j=1;j<=y;j++)
        {
            t++;
            cout<<"1";
            if(t%n==0)
                cout<<"\n";
        }
    }

    return 0;
}