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Thursday, 11 July 2013

C programs to find number of digits in a number

Write a C programs to find number of digits in a number.


  #include <stdio.h>
  int main() {
        int value = 0, mod, digit = 0;

        /* get the input value from the user */
        printf("Enter your input value:");
        scanf("%d", &value);

        /* find the number of digits */
        while (value > 0) {
                mod = mod % 10;
                digit++;
                value = value / 10;
        }

        /* print the number of digits */
        printf("No of digits in the given number is %d\n",
                digit ? digit : 1);

        return 0;
  }



  Output:
  jp@jp-VirtualBox:~/$ ./a.out
  Enter your input value:12345
  No of digits in the given number is 5



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