Tuesday, 1 May 2012
FACTORIAL
OF A NUMBER ITERATIVELY:-
/*It
computes repeatedly the factorial of an integer entered
*
by the user. It terminates when the integer entered is not
*
positive.
*/
#include
<stdio.h>
int
fact(int n);
int
main(void) {
int current;
printf("Enter a positive integer [to
terminate enter non-positive] > ");
scanf("%d", ¤t);
while (current > 0) {
printf("The factorial of %d is
%d\n", current, fact(current));
printf("Enter a positive integer [to
terminate enter non-positive] > ");
scanf("%d", ¤t);
}
}
/*
n is a positive integer. The function returns its factorial */
int
fact(int n) {
int lcv;
/* loop control variable */
int p;
/* set to the product of the first lcv positive integers */
for(p=1, lcv=2; lcv <= n; p=p*lcv, lcv++);
return p;
}
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