Question

*
**
***
****
do program in C++​

Answer 1

Language:

C++

Program:

#include<iostream>

using namespace std;

int main()

{ int i, j;

for(i=1; i<=4; i++){

       for(j=1; j<=i;j++) {  cout<<"*";}

               cout << "\n";    } }

Output:

In the attachment.

Explanation:

• Used one loop to control other and printed the output.
• cout<< "\n" prints empty line.