$$config title: [백준] 10단계 keywords: - JAVA $$ # 2231 분해합 ```java import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.IOException; import java.util.ArrayList; public class Main{ public static void main(String[] args) throws IOException{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); ArrayList decomList = new ArrayList<>(); int N = Integer.parseInt(br.readLine()); boolean zero = true; for(int i=1; i<=N; i++) { if(calc(i)==N){ decomList.add(i); zero=false; } if(i==N && zero){ decomList.add(0); } } System.out.println(decomList.get(0)); } static int calc(int num){ int sum=num; while(num!=0){ sum+=num%10; num/=10; } return sum; } } ``` # 7568 덩치 ```java import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; public class Main{ public static void main(String[] args) throws IOException{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); ArrayList ranks = new ArrayList<>(); int[][] person = new int[50][50]; int rankCount; int N = Integer.parseInt(br.readLine()); for(int i=0; i