#include<bits/stdc++.h> using namespace std; int main() { int n; cin>>n; int a[17][17]={0}; int k = 1; for(int i=0;i<n;i++) { for(int j=0;j<n-i;j++) { if(i==0) { a[j][j] = k; k++; } else { a[j][j+i] = a[j][j+i-1]+a[j+1][j+i]; } } } for(int i=0;i<n;i++) { for(int j = 0;j<n;j++) { if(a[i][j] == 0) { cout<<setw(5)<<" "; } else { cout<<setw(5)<<a[i][j]; } } cout<<endl; } } /************************************************************** Problem: 1205 User: wuyichen Language: C++ Result: Accepted Time:9 ms Memory:2072 kb ****************************************************************/