C++ Program to Find the Sum of All Digits of a Number

2 years ago

source link: https://www.geeksforgeeks.org/videos/cpp-program-to-find-the-sum-of-all-digits-of-a-number/
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30/05/2022

In this video, we will see a how-to find Sum of the digits of a given number. Let's understand this concept with the help of examples:

Suppose an Input : n = 123 = 1+2+3 = Output: 6

Now take another example and Input n = 1990 = 1+9+9+0 = Output : 19

General Algorithm for the sum of digits in a given number:

Step 1: Get the number. Step 2: Declare a variable to store the sum and set it to 0. Step 3: Repeat the next two steps till the number is not 0. Step 4: Get the rightmost digit of the number with help of the remainder ‘%’ operator by dividing it by 10 and add it to sum. Step 5: Divide the number by 10 with help of ‘/’ operator to remove the rightmost digit. Step 6: Print or return the sum.

Program for sum of the digits of a given number: https://www.geeksforgeeks.org/program-for-sum-of-the-digits-of-a-given-number/

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