(swift) [백준/Boj] 1316번 : 그룹 단어 체커

문제 링크:

https://www.acmicpc.net/problem/1316

1316번: 그룹 단어 체커

 

난이도: Silver 5

 

 

스위프트 코드:

import Foundation
let T = Int(readLine()!)
var answer = 0
var alpha = Array("abcdefghijklmnopqrstuvwxyz")

func check(_ c: Character)->Int{
    if let idx = alpha.firstIndex(of: c){
        alpha[idx] = "#"
        return 1
    }
    return -1
}

for _ in 1...T!{
    answer += 1
    var tempChar = ""
    let input = Array(readLine()!)
    alpha = Array("abcdefghijklmnopqrstuvwxyz")
    
    for i in input{
        if tempChar != "\(i)"{
            tempChar = "\(i)"
            if check(i) == -1{
                answer -= 1
                break
            }
        }
    }
}
print(answer)