class Solution { public String solution(String my_string, int s, int e) { String answer = ""; answer+=my_string.substring(0,s); for(int i=e;i>=s;i--){ char ch = my_string.charAt(i); answer+=ch; } answer+=my_string.substring(e+1,my_string.length()); return answer; }}

import java.util.*;class Solution { public String[] solution(String my_string) { String[] answer = new String[my_string.length()]; for(int i=0;i

import java.util.*;class Solution { public ArrayList solution(String[] intStrs, int k, int s, int l) { ArrayList answer = new ArrayList(); for(int i=0;ik) answer.add(Integer.parseInt(str)); } return answer; }}

import java.util.Scanner;class Solution { public int solution(String number) { int answer = 0; for(int i =0;i

class Solution { public String solution(String my_string, int[][] queries) { String answer = my_string; for(int[] query : queries){ int s = query[0]; int e = query[1]; String ap = answer.substring(0,s); String di =answer.substring(e+1); String jung=""; for(int i=e;i>=s;i--){ jung+=answer..

import java.util.*;class Solution { public ArrayList solution(int n) { ArrayList answer = new ArrayList(); while(n!=1){ answer.add(n); if(n%2==0){ n=n/2; } else{ n=3*n+1; } } answer.add(1); return answer; }}

class Solution { public String solution(String my_string, int[] index_list) { String answer = ""; for(int idx:index_list){ char ch = my_string.charAt(idx); answer+=ch; } return answer; }}

class Solution { public boolean solution(boolean x1, boolean x2, boolean x3, boolean x4) { boolean answer = false; if((x1||x2)&&(x3||x4)) answer = (x1||x2)&&(x3||x4); return answer; }}