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cbsampleutil.c
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cbsampleutil.c
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#include <stdio.h>
#include <cbsamplelib.h>
void usage(){
printf("Select one of the number below to validate a function.\n");
printf("1. Check whether a number is prime.\n");
printf("2. Get the sum of squares numbers till.\n");
printf("3. Get the sum of numbers numbers till.\n");
printf("4. Get the sum of digits in a number.\n");
printf("5. Get the product of digits in a number.\n");
printf("6. Check whether a year is leap year.\n");
printf("7. Check whether a number is perfect square.\n");
printf("8. Exit\n");
printf("Selection: ");
}
int main()
{
int input, num;
usage();
scanf("%d", &input);
if (input < 1 || input > 8 )
{
printf( "Bad input, quitting!\n" );
return -1;
}
else if (input == 8)
{
printf( "Thanks for playing!\n" );
return 0;
}
printf("Enter a positive integer (1 - 65535) to be validated: ");
scanf("%d", &num);
if ( num < 1 || num > 65536 ){
printf ("Invalid number entered.\n");
return -1;
}
switch ( input ) {
case 1: /* Note the colon, not a semicolon */
if (is_prime(num) == 1)
printf("Number %d is prime\n", num);
else
printf("Number %d is not prime\n", num);
break;
case 2:
printf("Sum of squares of numbers till %d is %lu\n", num, sum_of_squares(num));
break;
case 3:
printf("Sum of numbers till %d is %lu\n", num, sum_of_numbers(num));
break;
case 4:
printf("Sum of digits in number %d is %lu\n", num, sum_digits(num));
break;
case 5:
printf("Product of digits in number %d is %lu\n", num, product_digits(num));
break;
case 6: /* Note the colon, not a semicolon */
if (check_leap_year(num) == 1)
printf("%d is a leap year.\n", num);
else
printf("%d is not a leap year.\n", num);
break;
case 7: /* Note the colon, not a semicolon */
if (is_perfect_square(num) == 1)
printf("%d is a perfect square.\n", num);
else
printf("%d is not a perfect square.\n", num);
break;
case 8:
printf( "Thanks for playing!\n" );
break;
default:
printf( "Bad input, quitting!\n" );
break;
}
getchar();
}