[백준] ZOAC 2

https://www.acmicpc.net/problem/18238

18238번: ZOAC 2

 

string.ascii_uppercase = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

 

import sys, string

S = sys.stdin.readline().strip()
dic = {}
alphabet = string.ascii_uppercase
start = 'A'
answer = 0

for i in range(26):
    dic[alphabet[i]] = i
    
for i in S:
    answer += min(abs(dic[i] - dic[start]), 26 - abs(dic[i] - dic[start]))
    start = i

print(answer)