题解 | 构造数独

令对角线为K

#include <iostream>
using namespace std;

int main() {
    int n,k;
    cin>>n>>k;
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            if(j!=0)cout<<" ";
            if(j==i)cout<<k;
            else cout<<0;
        }
        cout<<"\n";
    }
    return 0;
}