[Java] baekjoon 2577 : 숫자의 개수 / 1차원 배열

문제 

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https://www.acmicpc.net/problem/2577

2577번: 숫자의 개수

구현 

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import java.util.*;
 
public class Main {
 
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner sc = new Scanner(System.in);
 
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int mul = a * b * c;
        int[] cnt = new int[10];
        
        for (int i = 0; i < String.valueOf(mul).length(); i++) {
            cnt[String.valueOf(mul).charAt(i) - '0']++;
        }
        for (int i = 0; i < cnt.length; i++) {
            System.out.println(cnt[i]);
        }
 
    }
}

결과 

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