样例都过不了，求助

wzy20110830 @ 2024-02-20 16:12:05

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n,x=0,k;
    vector <int> a;
    cin>>n;
    int sq[(int)pow(n,2)]={0};
    while(x<(int)pow(n,2))
    {
        cin>>k;
        a.push_back(k);
        x+=k;
    }
    for(int i=0;i<a.size();i++)
        for(int j=0;j<a[i];j++)
        {
            if(i%2!=0)  sq[i]=0;
            else    sq[i]=1;
        }
    for(int i=0;i<(int)pow(n,2);i++)
    {
        cout<<sq[i];
        if((i+1)%n==0)  cout<<endl;
    }
    return 0;
}

by Xia_Yu_Chen @ 2024-02-25 23:43:47

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n,x=0,k;
    vector <int> a;
    cin>>n;
    int sq[(int)pow(n,2)]={0};
    while(x<(int)pow(n,2))
    {
        cin>>k;
        a.push_back(k);
        x+=k;
    }

    int sum = 0;
    for(int i=0;i<a.size();i++){
        for(int j=0;j<a[i];j++)
            sq[sum + j] = i % 2;
        sum += a[i];
    }
    //i是下标不是个数，开sum记录已经修改了多少个数了，记得加j不然修改的位置循环内不变

    for(int i=0;i<(int)pow(n,2);i++)
    {
        cout<<sq[i];
        if((i+1)%n==0)  cout<<endl;
    }
    return 0;
}