PAT 1058 A+B in Hogwarts (20分) Python

题目

If you are a fan of Harry Potter, you would know the world of magic has its own currency system – as Hagrid explained it to Harry, “Seventeen silver Sickles to a Galleon and twenty-nine Knuts to a Sickle, it’s easy enough.” Your job is to write a program to compute A+B where A and B are given in the standard form of Galleon.Sickle.Knut (Galleon is an integer in [0,$10^7$], Sickle is an integer in [0, 17), and Knut is an integer in [0, 29)).

Input Specification:

Each input file contains one test case which occupies a line with A and B in the standard form, separated by one space.

Output Specification:

For each test case you should output the sum of A and B in one line, with the same format as the input.

Sample Input:

3.2.1 10.16.27

Sample Output:

14.1.28

解题思路

1. 第三位的两个数相加，遇29进位
2. 第二位的两个数相加，并加上第三位的进位的数，遇17进位
3. 第一位的两个数相加，并加上第二位的进位的数

代码

a,b = input().split()

a1,a2,a3 = map(int,a.split('.'))
b1,b2,b3 = map(int,b.split('.'))

c3 = a3 + b3
i3 = c3 // 29
r3 = c3 % 29

c2 = a2 + b2 + i3
i2 = c2 // 17
r2 = c2 % 17

c1 = a1 + b1 + i2

ans = map(str,[c1, r2, r3])

print('.'.join(ans))

结果