Written in C Not C++ or C# 1. Write a function to test whether a given number is

Question

Written in C

Not C++ or C#

1. Write a function to test whether a given number is a multiple of 8. A one (1) is returned if the given number is a multiple of 8. Otherwise, a zero (0) is returned. The number to be tested is an integer and is an argument to this function.

2. Write a switch statement that will examine the value of an integer variable yy and assign one of the following values to the variable dd, depending on the value of yy:

(a)15, if yy == 1

(b)25, if yy == 2

(c) 35, if yy == 3

(d)45, if yy == 4

(e) 55, if yy == 5

3. Write a loop to compute the sum of the squares of the first 100 odd integers.

Explanation / Answer

1)

int test8(int num)   //function takes num as integer
{
   if(num%8==0)   //if 8 successfully divides the num with remainder 0
       return 1;   //return 1
   return 0;   //otherwise return 0
}

2)

switch(yy)   //examin the yy
{
   case 1: dd=15;   //if yy=1 then dd=15
       break;
   case 2: dd=25;   //if yy=2 then dd=25
       break;
   case 3: dd=35;   //if yy=3 then dd=35
       break;
   case 4: dd=45;   //if yy=4 then dd=45
       break;
   case 5: dd=55;   //if yy=5 then dd=55
       break;
}

3)

for(i=0;i<100;i++)   //loop for count 100 numbers start from 0 to 99
{
   //each time i is multiplied with 2 and add 1 to form odd number
   //then each time this odd number is added to variable sum
   sum+=2*i+1;
}

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