factoral of zero code example
Example 1: factorial of 0
factorial(0) = 1Example 2: factorial
unsigned long long factorial(unsigned long long num){
if(num<=0)
return 1;
return num * factorial(num-1);
}factorial(0) = 1unsigned long long factorial(unsigned long long num){
if(num<=0)
return 1;
return num * factorial(num-1);
}