#include<bits/stdc++.h> using namespace std; int main(){ int n,a[15][15]={0},i,j; cin>>n; for(i=1;i<=n;i++){ j=n+1-i; a[i][j]=1; } for(i=1;i<=n;i++){ for(j=1;j<=n;j++){ cout<<setw(3)<<a[i][j]; } cout<<endl; } } /************************************************************** Problem: 1191 User: linyuhang Language: C++ Result: Accepted Time:10 ms Memory:2072 kb ****************************************************************/