[Python] 프로그래머스. 2020 카카오 인턴 - 키패드 누르기 (Level 1)

https://programmers.co.kr/learn/courses/30/lessons/67256

코딩테스트 연습 - 키패드 누르기

 

	def solution(numbers, hand):
	pad = {
	1:(0,0), 2:(0,1), 3:(0,2),
	4:(1,0), 5:(1,1), 6:(1,2),
	7:(2,0), 8:(2,1), 9:(2,2),
	0:(3,1)
	}
	left, right = {1,4,7}, {3,6,9}
	left_pos, right_pos = (3,0), (3,2)
	answer = []
	for num in numbers:
	if num in left:
	left_pos = pad[num]
	answer.append("L")
	elif num in right:
	right_pos = pad[num]
	answer.append("R")
	else:
	ldist = abs(left_pos[0] - pad[num][0]) + abs(left_pos[1] - pad[num][1])
	rdist = abs(right_pos[0] - pad[num][0]) + abs(right_pos[1] - pad[num][1])
	if ldist == rdist:
	if hand == 'left':
	answer.append("L")
	left_pos = pad[num]
	else:
	answer.append("R")
	right_pos = pad[num]
	else:
	if ldist > rdist:
	answer.append("R")
	right_pos = pad[num]
	else:
	answer.append("L")
	left_pos = pad[num]
	return "".join(answer)

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