[프로그래머스] level2 쇠막대기 2020_05_29 Python3

https://programmers.co.kr/learn/courses/30/lessons/42585

코딩테스트 연습 - 쇠막대기

 

def solution(arrangement):
    answer = 0
    left, laser = 0, 0
    i=0
    while i < len(arrangement) -1:
        if arrangement[i] == '(':
            if arrangement[i+1] == ')' :
                i +=2
                answer += left
                continue
            else:
                left += 1
                answer += 1
        else: # ')'
            left -=1
        
        i += 1
    return answer