How to find greatest of (2 or 3) number using switch?

CODE

How to find greatest of (2 or 3) number using switch?

// Write a program to find greatest of 2 numbers if choice is 1 and find greatest of 3 numbers if choice is 2…

int main()

{

    int choice,a,b,c;

    printf("\n enter choice(1,2):");

    scanf("%d",&choice);

    switch(choice)

    {

    case 1:

        printf("\n enter the value of a and b:");

        scanf("%d%d",&a,&b);

        if(a>b)

            printf("\n a is greatest");

        else

            printf("\n b is greatest");

        break;

    case 2:

        printf("\n enter th value of a,b,c:");

        scanf("%d%d%d",&a,&b,&c);

        if(a>b)

        {

            if(a>c)

                printf("\n a is greatest");

            else

                printf("\n c is greatest");

        }

        else

            if(b>c)

                printf("\n b is greatest");

            else

                printf("\n c is greatest");

        break;

    default:

        printf("\n wrong choice");

    }

}

Output:

enter choice(1,2): 2

 enter th value of a,b,c:

78

45

56

 a is greatest