\(\begin{array}{c } * \\ *\\  *\\  *\end{array}\) 

Write a program that reads a number and displays a star on each line.

Difficulty level
This exercise is mostly suitable for students 
#include<stdio.h>
#include<conio.h>

void main()
{
	int N, i;
	do{
		printf("Enter N: ");
		scanf("%d",&N);
	}while(N<=0);

	for(i=0; i< N; i++)
		printf("*\n");

	getch();
}
Back to the list of exercises
Looking for a more challenging exercise, try this one !!
Sum of the first n terms of the harmonic series - iterative