Question

KAM5 Write a function unsigned long long int factorial(int num) to compute the factorial of a number. The factorial of a number is given by n! = 1*2* ... *n So 1! = 1, 2! = 1*2, 3! = 1*2*3 ... For example: Test Result printf("%llu\n", factorial(5)); 120 printf("%lu\n", factorial(20)); 2432902008176640000

C programming

Answer 1

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CODE:

#include <stdio.h>

unsigned long long int factorial(int num){
if(num==1){
return 1;
}
return num*factorial(num-1);
}

int main()
{
printf("%llu\n",factorial(5));
printf("%llu\n",factorial(20));
return 0;
}

SCREENSHOT :

main.c 1 #include <stdio.h> 3 unsigned long long int factorial(int num) { if(num=-1){ return 1; 600 vouw return num factorial(num-1); } 10 11 12 int main() { printf("%llu\n", factorial(5)); printf("%llu\n", factorial(20)); return 0;

OUTPUT :

input 120 2432902008176640000 ... Program finished with exit code 0 Press ENTER to exit console.