View Code of Problem 53

#include<iostream>

using namespace std;

int main(void){
    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 << "*";
        }
        cout << endl;
    }
    for(int i=n-1;i>=1;i--){
        for(int j=1;j<=n-i;j++){
            cout << ' ';
        }
        for(int j=1;j<=i*2-1;j++){
            cout << "*";
        }
        cout << endl;
    }
}