[프로그래머스] 달리기 경주

• 링크:
  https://school.programmers.co.kr/learn/courses/30/lessons/178871
• 회고:
  반복 가능한 객체에 대해서, 요소와 요소의 인덱스를 동시에 필요로 하는 경우 enumerate 함수 사용하면 좋다.
  
  

python

def solution(players, callings):
    players_location = dict()

    players_location = {player: idx for idx, player in enumerate(players)}

    for calling_player in callings:
        calling_player_location = players_location[calling_player]
        forward_player = players[calling_player_location - 1]

        # 선수들 위치 변경
        players[calling_player_location] = forward_player
        players[calling_player_location - 1] = calling_player

        players_location[calling_player] -= 1
        players_location[forward_player] += 1

    return players