Dsa
Math
Easy
Sum of Digits Until One Digit
Given a non-negative integer, continuously sum its digits until a single digit is obtained.
Input:
- A single integer n (0 <= n <= 10^9).
Output:
- A single digit which is the result after repeated summation of the digits.
Example:
Input:
38
Output:
2
Key concepts
mathdigitsreduction
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