题解 | #进制转换#
进制转换
https://www.nowcoder.com/practice/8f3df50d2b9043208c5eed283d1d4da6
import sys
str = input()
sum = 0
dic = {'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15}
for i in range(len(str) - 2):
n = str[len(str) - 1 - i]
if n in dic:
sum += dic[n] * 16 ** i
else:
sum += (int(n) * 16 ** i)
print(sum)
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