[BOJシルバー2]似たような単語Kotlin

質問する

説明:

コード#コード#

fun main() = with(System.`in`.bufferedReader()){
    val map = HashMap<String,Int>()
    val n = readLine().toInt()
    var cnt= 0
    for(i in 1..n){
        var str = readLine()
        var sequence = ArrayList<Char>()
        for(t in str){
            if(!sequence.contains(t)){
                sequence.add(t)
            }
        }
        for(j in 0 until sequence.size){
            str = str.replace(sequence[j],j.toChar())
        }
        if(map.contains(str)){
            cnt += map[str]!!
            map.put(str,map[str]!!+1)
        }
        else{
            map[str] = 1
        }
    }
    println(cnt)
}