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- #include <stdio.h>
- #include <math.h>
- int main()
- {
- int n, num = 0, digits;
- /* Input number from user */
- printf("Enter any number to print in words: ");
- scanf("%d", &n);
- /* Find total digits in n */
- digits = (int) log10(n);
- /* Store reverse of n in num */
- while(n != 0)
- {
- num = (num * 10) + (n % 10);
- n /= 10;
- }
- /* Find total trailing zeros */
- digits = digits - ((int) log10(num));
- /*
- * Extract last digit of number and print corresponding number in words
- * till num becomes 0
- */
- while(num != 0)
- {
- switch(num % 10)
- {
- case 0:
- printf("Zero ");
- break;
- case 1:
- printf("One ");
- break;
- case 2:
- printf("Two ");
- break;
- case 3:
- printf("Three ");
- break;
- case 4:
- printf("Four ");
- break;
- case 5:
- printf("Five ");
- break;
- case 6:
- printf("Six ");
- break;
- case 7:
- printf("Seven ");
- break;
- case 8:
- printf("Eight ");
- break;
- case 9:
- printf("Nine ");
- break;
- }
- num /= 10;
- }
- /* Print all trailing zeros */
- while(digits)
- {
- printf("Zero ");
- digits--;
- }
- return 0;
- }
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