样例过了但是全WA

#include <bits/stdc++.h>
using namespace std;

int main(){
    int n,m=0,x=0,a=0,i=0;
    cin>>n;
    while(scanf("%d",&m) != EOF){
        for(int j=1;j<=m;j++){
            x++;
            if(i%2==0){
                cout<<"0";
            }if(i%2==1){
                cout<<"1";
            }
            if(x>0&&x%7==0){
                cout<<endl;
            }
        }
        i++;
        a+=m;
    }
    return 0;
}