Example: C Program to Find Number of Digits in an Integer Value

C
C++
C#
Java
Python
PHP

// C Program to Find Number of Digits in an Integer Value
#include <stdio.h>

// It's the main function of the program
int main() {
    long long number = 0;
    long long temp_num;
    int count = 0;

    // Step-1 Take input from the User
    printf("Enter an integer value: ");
    scanf("%lld", &number);
    temp_num = number;

    // Step-2 Iterate over the `number` variable using the while loop
    while (number != 0) {
        number /= 10;
        count++; // Increment count of the Number
    }

    // Step-3 Final output of the program
    printf("\nTotal %d digits in '%lld'\n", count, temp_num);
    return 0;
}