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자바(Java) 알고리즘 문제풀이 입문: 코딩테스트 대비

4. 모든 아나그램 찾기(Hash, sliding window : 시간복잡도 O(n))

charAt 을 사용하지 않고 배열로 바꿔 사용한점 빼고는 거의 동일한 코드같은데 실패합니다 ㅠㅠ

해결된 질문

205

jaden

작성한 질문수 44

0

한참동안 코드를 살펴봐도 어디가 잘못된 건지 모르겠네요 ㅜㅜ 테스트케이스에 올라온건 통과하는데 fail 이라 이해가 잘 되지 않습니다 ㅠㅠ

확인 한번 부탁드립니다 

import java.util.HashMap;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        String source = sc.nextLine();
        String target = sc.nextLine();

        System.out.println(solution(source, target));

    }

    private static int solution(String source, String target) {
        int answer = 0;

        HashMap<Character, Integer> t = new HashMap<>();
       for(char c : target.toCharArray()){
           t.put(c, t.getOrDefault(c, 0)+1);
       }

       HashMap<Character, Integer> s = new HashMap<>();

        char[] sArr = source.toCharArray();

        for(int i = 0; i < t.size()-1; i++){
            s.put(sArr[i], s.getOrDefault(sArr[i], 0) +1);
        }

        int lt = 0;
        for(int rt = t.size()-1; rt < sArr.length; rt++){
            s.put(sArr[rt], s.getOrDefault(sArr[rt], 0) +1);
            if(t.equals(s)) answer++;
            s.put(sArr[lt], s.get(sArr[lt])-1);
            if(s.get(sArr[lt]) == 0) s.remove(sArr[lt]);
            lt++;
        }
        return answer;
    }
}

java 코테 준비 같이 해요!

답변 1

0

김태원

안녕하세요^^

AGSDEGEWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyzWetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabtWestuwxyz WetabtqtqEFqGHIJKLtabeWPQRSTUVWetabdgXYabteWcdefghijklmnopqrabt

위 입력이 오답으로 나옵니다. 답은 180입니다.

채점사이트에서 결과로 "오답입니다" 라고 나오는 부분을 클릭해보세요. 그러면 자세한 결과를 볼 수 있고, 오답이 나온 채점데이터도 볼 수 있습니다.

안녕하세요. 바뀐 채점사이트 관련해서 문의드립니다.

0

70

2

갑자기 채점 사이트가 바뀌었어요

0

50

1

문제 리스트 페이지

0

41

1

채점 사이트 관련 질문드립니다

0

39

1

봉우리 문제 질문입니다

0

102

2

씨름 선수 문제에서 각 선수의 몸무게나 키가 같을 수도 있다면?

0

73

0

이 코드랑 영상 코드중에 뭐가 더 좋은 코드인가요?

0

78

0

가중치 방향 그래프에서 가중치가 0인 간선을 표현하는 방법

0

76

1

좌표 정렬 문제 이 코드가 왜 틀린지 모르겠습니다 ㅠㅠ

0

94

2

6-7 강의에서

0

53

1

6-6. 장난꾸러기 질문 있습니다.

0

50

1

강의 수강후 코딩테스트

0

126

1

answer 변수 사용 여부

0

50

1

2중 for문

1

96

2

2-11. 임시반장정하기 (Runtime Error)

0

67

1

혹시 LinkedList 같은 자료 구조들은 따로 배우지 않나요?

0

75

1

이런 풀이는 어떨까요

0

50

1

자바 스트림 방식의 효율성 질문 드립니다.

0

62

1

알고리즘 자료 구조들..

0

68

1

StringBuilder vs BufferdWriter

0

53

1

원더랜드(프림)

0

55

1

이런 코드는 어떤가요?

0

66

1

bfs 풀이

0

61

1

병합정렬

0

58

1