View Code of Problem 53

#include <stdio.h>
#include <iostream>
#include <string.h>
#include <string>
#include <algorithm>
#include <iomanip>
#include<vector>
#include<math.h>
using namespace std;
int main()
{
	int n;
	cin >> n;
	for (int i = 0; i < n; i++) {
		for (int j = i + 1; j < n; j++) {
			cout << " ";
		}
		for (int j = 0; j <2*i+1; j ++) {
			cout << "*";
		}
		cout << endl;
	}
	for (int i = 1; i < n; i++) {
		for (int j = 0; j < i; j++) {
			cout << " ";
		}
		for (int j = 2*n; j >2*i+1;j --) {
			cout << "*";
		}
		cout<<endl;
	}
}