Sum of Digits Problem Statement
Given an integer 'N', continue summing its digits until the result is a single-digit number. Your task is to determine the final value of 'N' after applying this operation iteratively until the value is less than 10.
Input:
The first line contains an integer 'T' which represents the number of test cases. Each test case consists of a single integer 'N' provided in a new line.
Output:
For each test case, output the final single-digit integer in a separate line.
Example:
Input:
2
38
1337
Output:
2
5
Explanation:
In the first test case, 38 -> 3 + 8 = 11 -> 1 + 1 = 2.
In the second test case, 1337 -> 1 + 3 + 3 + 7 = 14 -> 1 + 4 = 5.
Constraints:
- 1 <= T <= 11
- 1 <= N <= 109
- Time Limit: 1 second

AnswerBot
4mo
Given an integer, find the final single-digit value after summing its digits iteratively.
Iteratively sum the digits of the input integer until the result is a single-digit number
Output the final singl...read more
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