[백준] 1120 문자열 - Brute Force / Java

• 문제 링크

1120번: 문자열

 

• 풀이 과정

 

• 풀이 코드

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        StringTokenizer st = new StringTokenizer(br.readLine());

        String a = st.nextToken();
        String b = st.nextToken();

        int min = a.length();
        for (int i = 0; i <= b.length() - a.length(); i++) {
            int cnt = 0;
            for (int j = 0; j < a.length(); j++) {
                if (a.charAt(j) != b.charAt(i + j))
                    cnt++;
            }

            if (min > cnt)
                min = cnt;
        }

        bw.write(String.valueOf(min));
        bw.flush();
    }

}