[BOJ] 1475 방 번호 - 파이썬

 

import math

N = int(input())

answer = [0]*10

while(N > 0):
  answer[int(N%10)] += 1
  N = int(N/10)

if answer[6] > answer[9]:
  answer[6] = answer[9] + math.ceil((float(answer[6] - answer[9])) / 2)
elif answer[6] < answer[9]:
  answer[9] = answer[6] + math.ceil((float(answer[9] - answer[6])) / 2)

print(int(max(answer)))