[문제 풀이] 백준 11655 ROT13

import java.util.Scanner; public class pro_11655 { public static void main(String args[]){ Scanner sc = new Scanner(System.in); String str = sc.nextLine(); char ch[]=str.toCharArray(); for(int i=0; i<ch.length; i++){ if(ch[i]>='a' && ch[i]<='m') ch[i]+=13; else if(ch[i]>='n' && ch[i]<='z') ch[i]-=13; else if(ch[i]>='A' && ch[i]<='M') ch[i]+=13; else if(ch[i]>='N'&& ch[i]<='Z') ch[i]-=13; } System.out.println(ch); } }