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[Algorithm] 문자열 나누기 #65

Description

@hwangJi-dev

💬 문제

[코딩테스트 연습 - 문자열 나누기](https://school.programmers.co.kr/learn/courses/30/lessons/140108)


💬 Idea

  • s를 돌면서 첫 글자인 first와 i가 같을 경우에는 count를 올리고(+1), 아닐 경우에는 count를 내린다(-1)
  • count가 0이 될 때 first를 i로 초기화하고 결과값에 1을 더한다.

💬 풀이

func solution(_ s:String)->Int{varfirst= s.first
varcount=0varresult=0foriin s {if count ==0{
result +=1
first = i
}
count = i == first ? count +1: count -1}return result
}

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