5358번: Football Team

문제 출처 : https://www.acmicpc.net/problem/5358

5358번: Football Team

언어 : Kotlin

 

문제 설명 :

The PLU football coach must submit to the NCAA officials the names of all players that will be competing in NCAA Division II championship game. Unfortunately his computer keyboard malfunctioned and interchanged the letters ‘i’ and ‘e’. Your job is to write a program that will read all the names and print the names with the correct spelling.

 

입력 :

The file contains a list of names, and each name will be on a separate line.

 

출력 :

Print the same list of names with every ‘i’ replaced with an ‘e’, every ‘e’ replaced with an ‘i’, every ‘I’ replaced with an ‘E’, and every ‘E’ replaced with an ‘I’.

 

제한 사항 :

• 시간 제한 : 1초
• 메모리 제한 : 128MB

 

입출력 예 :

입력	출력
Alan Pagi John Hiesman Justen Forsitt Phel Semms Tem Tibow Marshawn Lynch Lion Washengton	Alan Page John Heisman Justin Forsett Phil Simms Tim Tebow Marshawn Lynch Leon Washington

 

풀이 : 

import java.io.BufferedReader
import java.io.BufferedWriter
import java.io.InputStreamReader
import java.io.OutputStreamWriter

fun main() = with(BufferedReader(InputStreamReader(System.`in`))) {
    val bw = BufferedWriter(OutputStreamWriter(System.out))

    var input: String?
    while (true) {
        input = readLine()
        val sb = StringBuilder()
        if (input.isNullOrEmpty()) break

        for (i in input) {
            val cur = Pair(i.lowercaseChar(), if (i.isLowerCase()) 0 else 1)
            when (cur.first) {
                'i' -> sb.append(if (cur.second > 0) "E" else "e")
                'e' -> sb.append(if (cur.second > 0) "I" else "i")
                else -> sb.append(i)
            }
        }

        bw.appendLine(sb.toString())
    }
    bw.flush()
    bw.close()
}