[백준 알고리즘] 백준 2231번 - 분해합(JAVA)

문제

https://www.acmicpc.net/problem/2231

2231번: 분해합

 

문제풀이

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
 
public class Main_BOJ_2231_분해합 {
 
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int N = Integer.parseInt(br.readLine());
        
        int ans=0;
        
        for (int i = 0; i <N; i++) {
            int num = i;
            int sum =0;
            
            while(num!=0) {
                sum += num%10;
                num /=10;
            }
            
            if(sum+i==N) {
                ans = i;
                break;
            }
            
            
        }
        System.out.println(ans);
 
    }
 
}