C++ Count Number of Digits in a given Number
In this tutorial, we will learn how to determine the number of digits in a given number, using C++.
using namespace std;
cout << "\n\nWelcome to Studytonight :-)\n\n\n";
cout << " ===== Program to count the number of digits in a given number ===== \n\n";
int n, n1, num = 0;
//taking input from the command line (user)
cout << " Enter a positive integer : ";
cin >> n;
n1 = n; //storing the original number
//Logic to count the number of digits in a given number
while (n != 0)
n /= 10; //to get the number except the last digit.
num++; //when divided by 10, updated the count of the digits
cout << "\n\nThe number of digits in the entered number: " << n1 << " is " << num;
cout << "\n\n\n";
We hope that this post helped you develop a better understanding of the logic to compute the number of digits in an entered number, in C++. For any query, feel free to reach out to us via the comments section down below.
Keep Learning : )