#include <bits/stdc++.h> using namespace std; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ for(int j=1;j<=n-i;j++) cout<<" "; for(int j=1;j<=i*2-1;j++) cout<<j; cout<<endl; } } /************************************************************** Problem: 1072 User: wangyiyang Language: C++ Result: Accepted Time:8 ms Memory:2072 kb ****************************************************************/