[백준] 1543 문서 검색 - Brute Force / Java

• 문제 링크

1543번: 문서 검색

 

• 풀이 과정

 

• 풀이 코드

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

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));

        String doc = br.readLine();
        String word = br.readLine();

        int cnt = 0;
        for (int i = 0; i < doc.length() - word.length() + 1; i++) {
            if (!doc.startsWith(word, i))
                continue;
            i += word.length() - 1;
            cnt++;
        }

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

}

 

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

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));

        String doc = br.readLine();
        String word = br.readLine();

        int len = doc.length();
        doc = doc.replace(word, "");

        bw.write(String.valueOf((len - doc.length()) / word.length()));
        bw.flush();
    }

}