Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Transcribed Image Text:e) What does each function do?
Hint: Write a simple description for each of the user-defined functions.
void print_stars():
void option_list()
void divisors(int n)
Example:
This function takes one argument of type int and prints its divisors on the screen, including, 1 and itself.
summation(int s)
int factorial (int n)
Transcribed Image Text:#include<stdio.h>
Y void print_stars();
* void option_list();
*
void divisors(int n);
• int summation(int s);
int factorial (int n):
int main(void) {
int number, result, op ;
char flag:
11
printf("Enter an integer number > ");
scanf "%d", &number );
ir
dol
10
option_list();
scanf("%d" , &op);
switch(op) {
case 1:
19
divisors(number);
Y.
break;
case 2:
YY
result = summation(number);
printf("Summation = %d\n", result);
break;
YO
case 3:
result = factorial(number):
printf("Factorial = %d\n", result);
break;
YY
YA
default:
printf("\NERROR: %d is unrecognized option!!! \n", op);
print_stars();
printf("Do you want to check another function? (Y/N)> "):
scanf(" %c" , &flag);
} while (flag == "Y" || flag == 'y');
rv
return 0;
. void option_list(){
print_stars();
printf("1: Find the divisors \n");
printf("2: Compute the summuation\n");
printf("3: Compute the factorial \n");
print_stars();
printf("Please enter your choice: "):
EA void print stars()
int i;
for(i = 1;i<= 25; i++)
printf("");
01
or
or
printf("\n");
00
01 void divisors(int n) {
int i;
printf("Divisors of %d are\n",n);
for(i=1;ic=n;i++)
if(n%i=0)
printf(" %d",i);
09
1.
printf("\n");
10 lint factorial (int n){
11 int i, fact = 1;
for (i = 2; i<= n; i++)
fact * i;
14
return fact;
VI int summation(int s){
if (s == 0)
VY
return 0;
else
YO
return s+ summation(s-1);
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