pyramid.cpp

#include<iostream>
using namespace std;
int main()
{
    int n;
cin>>n;
for(int i=0;i<n;i++){
    for(int j=0;j<n;j++){
        if(j>=n-(i-1) && j<=n+(i-1))
           {
               cout<<"*";
           }
           else{
            cout<<" ";
           }

    }
    cout<<endl;
}
return 0;
}