강사님 테스트 5번만 오답으로 뜨는데 틀린점을 못 찾겠습니다
255
작성한 질문수 14
테스트 5번만 리턴값이 0으로 나와서 오답처리되는데
틀린점을 못 찾겠습니다ㅠㅠ
import java.util.*;
public class Main {
static Scanner sc = new Scanner(System.in);
public static void main(String[] args) {
String s = sc.next();
String t = sc.next();
System.out.print(solution(s, t));
}
static int solution(String s, String t) {
int answer = 0;
HashMap<Character, Integer> HM = new HashMap<>();
HashMap<Character, Integer> HM2 = new HashMap<>();
char[] arr1 = s.toCharArray();
char[] arr2 = t.toCharArray();
int lt = 0;
// t에 대한 해쉬맵 먼저 생성
for(char x:arr2) {
HM2.put(x, HM.getOrDefault(x, 0)+1);
}
for(int i=0; i<arr2.length-1; i++) {
HM.put(arr1[i], HM.getOrDefault(arr1[i], 0)+1);
}
for(int rt=arr2.length-1; rt<arr1.length; rt++) {
HM.put(arr1[rt], HM.getOrDefault(arr1[rt], 0)+1);
if(HM.equals(HM2)) answer++;
HM.put(arr1[lt], HM.get(arr1[lt])-1);
if(HM.get(arr1[lt])==0) HM.remove(arr1[lt]);
lt++;
}
return answer;
}
}답변 1
0
안녕하세요^^
중간중간 출력하면서 디버그해보세요. 그리고 제가 드린 코드와도 비교하다보면 무엇이 문제인지 알게 될 겁니다. 스스로 찾아보는게 공부입니다. 저는 2주 정도를 디버그한적도 있습니다. 하다 안되면 좀 나뒀다 시간되면 다시 해보고 했던것 같습니다.
5번 데이터입니다.
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