Write a C function that adds all the numbers on the stack together.

Difficulty level
Video recording
This exercise is mostly suitable for students 
int add(stack s)
{
	element e;
	int sum=0;
	while(Top(s,&e))
	{
		Pop(&s);
		sum+=e;
	}
	return sum;
}
Back to the list of exercises
Looking for a more challenging exercise, try this one !!
Derivative approximation