#include<bits/stdc++.h>
using namespace std;
int z[201];
int main(){
    int n,t,b=0;
    bool c=0;
    cin>>n;
    t=n*n;
    for (int i=1;b<t;i++){
        cin>>z[i];
        b+=z[i];
    }
    b=0;
    for (int i=1;b<n;i++){
        for (int t=1;t<=z[i];t++){
            if (i%n==0)
            cout<<endl;
            cout<<c;
        }
        if (c==0)
        c=1;
        if (c==1)
        c=0;
        b+=z[i];
    }
    return 0;
}

这段代码要怎么改呀？语言：C++14（GCC9)