Count Digits

Easy Loops
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Problem Statement

Write a C++ program that reads an integer and counts the total number of digits it contains.

Input Format

A single integer N.

Output Format

Print the total number of digits.

Constraints

-1000000000 <= N <= 1000000000

Sample Input

4521

Sample Output

4

Explanation

Divides the number by 10 in a loop until it becomes 0 to count digits.

Starter Code

#include <iostream>

int main() {
    long long n;
    if (std::cin >> n) {
        // Write your code here
    }
    return 0;
}

Limits

  • Time Limit: 1s
  • Memory Limit: 256MB

Embedded C Programming

Updated: March 15, 2026
Intermediate

Embedded systems rely on efficient low-level programming to interact directly with hardware. In this course, you will learn how to write practical Embedded C programs used in real microcontroller-based systems. Rather than focusing only on theory, this course follows a practice-driven approach. Each lesson includes hands-on coding exercises that simulate real firmware development tasks used