C Program to Find Number of Digits in an Integer Value

C program to find the number of digits in an integer value.

In this article, you will learn how to count the number of digits in the input integer value.

Example

Source

// 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;
}

Run

Output