a2_q4.cpp

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