View Code of Problem 57

#include<cstdio>
#include<iostream>
#include<algorithm>
#include<cmath>
#include<cstring>
#include<vector>
#include<map>
#include<string>
#include<set>
using namespace std;

int main(void){
	int n;
	cin>>n;
	for(int i=1;i<=n;i++){
		for(int t=n;t>i;t--)
			cout<<" ";
		for(int j=1;j<=i;j++){
			cout<<j;
		}
		for(int j=i-1;j>=1;j--){
			cout<<j;
		}
		cout<<endl;
	}
	for(int i=n-1;i>=1;i--){
		for(int t=i;t<n;t++)
			cout<<" ";
		for(int j=1;j<=i;j++){
			cout<<j;
		}
		
		for(int j=i-1;j>=1;j--){
			cout<<j;
		}
		cout<<endl;
	}
}