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using System;

public class Solution {
    public int solution(int n) {
        int answer = 0;
        
        while(n >= 10)
        {
            answer += n%10;
            n /= 10;
        }
        
        answer += n%10;
        return answer;
    }
}

 

파이썬

 

def solution(n):
    return sum(int(i) for i in str(n))

 

 

자바

 

 

class Solution {
    public int solution(int n) {
        int answer = 0;

        while(n>0)
        {
            answer+=n%10;
            n/=10;
        }

        return answer;
    }
}
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