题解 | 进制转换

import sys

line1 = sys.stdin.readline()
dic = {'0':0, '1':1,'2':2,'3':3,'4':4,'5':5,'6':6,
    '7':7,'8':8,'9':9,'10':10,
    'A':10,'B':11, 'C':12,'D':13,'E':14,'F':15}
line1 = line1[::-1]
line1 = line1[:-2]
line1 = list(line1.strip())

acc = 0
n = 0
for i in line1:
    #print(dic.get(i),n)
    ins = dic.get(i)*(16**n)
    n = n+1
    acc = acc + ins

print(acc)