코딩응급실

import java.util.*; class Solution { public String[] solution(String[] strings, int n) { Arrays.sort(strings, new Comparator() { @Override public int compare(String s1, String s2) { if (s1.charAt(n) > s2.charAt(n)) { return 1; } else if (s1.charAt(n) == s2.charAt(n)) { return s1.compareTo(s2); } else { return -1; } } }); return strings; } public static void main(String[] args) { Solution sol = n..

import java.util.*; class Solution { boolean solution(String s) { int countP = 0, countY = 0; for (int i = 0; i < s.length(); i++) { char c = s.charAt(i); if (c == 'p' || c == 'P') countP++; if (c == 'y' || c == 'Y') countY++; } return countP == countY; } public static void main(String[] args) { String s = "pPoooyY"; Solution sol = new Solution(); boolean result = sol.solution(s); System.out.pri..

import java.util.*; class Solution { public String solution(String s) { char[] chars = s.toCharArray(); Arrays.sort(chars); // 문자 배열 정렬 // 배열을 역순으로 재배치 StringBuilder sb = new StringBuilder(new String(chars)).reverse(); return sb.toString(); } public static void main(String[] args) { String s = "Zbcdefg"; Solution sol = new Solution(); String result = sol.solution(s); System.out.print(result); //..

import java.util.*; class Solution { public String solution(String[] seoul) { String answer = ""; int idx = -1; for (int i=0; i

import java.util.*; class Solution { public boolean isPrime(int num) { if (num < 2) return false; for (int i = 2; i * i

import java.util.*; class Solution { public String solution(int n) { String answer = ""; for (int i = 0; i < n; i++) { if (i % 2 == 0) { answer += "수"; } else { answer += "박"; } } return answer; } public static void main(String[] args) { int n = 3; Solution sol = new Solution(); String result = sol.solution(n); System.out.print(result); } }

import java.util.*; class Solution { public int solution(String s) { int answer = Integer.parseInt(s);; return answer; } public static void main(String[] args) { String s = "-1234"; Solution sol = new Solution(); int result = sol.solution(s); System.out.print(result); } }

import java.util.*; class Solution { public String solution(String s, int n) { StringBuilder answer = new StringBuilder(); for (int i=0; i