프로그래머스 : 수식 최대화
코딩테스트 연습 - 수식 최대화
from itertools import permutations
import re
def solution(expression):
answer = []
ops = ["+", "-", "*"]
priorities = permutations(ops)
for priority in priorities:
operands = re.split(r'[+,*,-]', expression)
operators = re.split('[0-9]+',expression)[1:-1]
for p in priority:
while p in operators:
idx = operators.index(p)
operands[idx] = str(eval(operands[idx] + p + operands[idx+1]))
del operators[idx]
del operands[idx+1]
answer.append(abs(int(operands[0])))
return max(answer)