sum-of-digits-in-base-k

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1837. Sum of Digits in Base K (Easy)

Given an integer n (in base 10) and a base k, return the sum of the digits of n after converting n from base 10 to base k.

After converting, each digit should be interpreted as a base 10 number, and the sum should be returned in base 10.

 

Example 1:

Input: n = 34, k = 6
Output: 9
Explanation: 34 (base 10) expressed in base 6 is 54. 5 + 4 = 9.

Example 2:

Input: n = 10, k = 10
Output: 1
Explanation: n is already in base 10. 1 + 0 = 1.

 

Constraints:

• 1 <= n <= 100
• 2 <= k <= 10

Related Topics

[Math]

Hints

Hint 1

Convert the given number into base k.

Hint 2

Use mod-10 to find what each digit is after the conversion and sum the digits.