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Write C Program to Print nPr using While loop

//WAP to print nPr

#include<stdio.h>

int fact(n)
{
	int f = 1;
	int i = 1;
	while(i <= n)
	{
		f = f * i;
		i++;
	}
	return f;
}

int main()
{
	int n, r;
	printf("Enter the value of n:--> ");
	scanf("%d", &n);

	printf("Enter the value of r :--> ");
	scanf("%d", &r);

	int result = fact(n)/fact(n-r);  //permutation formula

	printf("The value of nPr is %d", result);

	return 0;
}

Output:

Enter the value of n:--> 5
Enter the value of r :--> 3

The value of nPr is 60