Write in C: 1.) Write the definition of a function isEven, which receives an int

Question

Write in C:

1.) Write the definition of a function isEven, which receives an integer parameter and returns true if the parameter's value is even, and false otherwise.

So if the parameter's value is 7 or 93 or 11 the function returns false. But if the parameter's value is 44 or 126 or 7778 the function returns true.

2.) Given the integer variables x and y, write a fragment of code that assigns the larger of x and y to another integer variable max.

3.) Write the definition of a function max that has three int parameters and returns the largest.

Explanation / Answer

1).

Program:

#include<stdio.h>
char* isEven(int);
main()
{
   int n;
   printf("enter the number:");
   scanf("%d",&n);
   printf("%s",isEven(n));
}
char* isEven(int n)
{
   if(n%2==0)
   return "true";
   else
    return "false";
}

Sample Output:

       enter the number: 11

       false

2).

Program:

#include<stdio.h>
main()
{
   int x,y,max;
   printf("enter the values of x and y:");
   scanf("%d%d",&x,&y);
   if(x>y)
   max=x;
   else
   max=y;
   printf("The large value between %d and %d is: %d",x,y,max);
}

  Sample Output:

     enter the values of x and y: 2 3

     The large value between 2 and 3 is: 3

3).

   Program:

#include<stdio.h>
int max(int,int,int);
main()
{
   int a,b,c;
   printf("Enter the values of a,b and c:");
   scanf("%d%d%d",&a,&b,&c);
   printf("The largest value is:%d",max(a,b,c));
}
int max(int a,int b,int c)
{
   if(a>b&&a>c)
   return a;
   else if(b>c)
   return b;
   else
   return c;
}

Sample Output:

   Enter the values of a,b and c: 1 2 3

   The large value is: 3

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