Baekjoon 5355 Python

https://www.acmicpc.net/problem/5355

5355번: 화성 수학

Problem

You are on planet jj and they do math a bit differently. Math is done using the following operators : @, %, and #. @ is multiply by 3. % is add 5. # is subtract 7. That is all they can do in terms of math operations. Each expression will start with a number and then a list of operators.

 

Input

The first line in the data file will indicate the number of data sets to follow. Each data set will contain an expression to solve.

 

Output

Print out the answer formatted to 2 decimal places.

 

Code

n = int(input())

for _ in range(n):
    jj = input().split(' ')
    num = float(jj[0])
    operators = jj[1:]

    for i in operators:
        if i == '@':
            num *= 3
        elif i == '%':
            num += 5
        else:
            num -= 7
    print("%0.2f" % num)