537.md

537 Complex Number Multiplication

Description

link

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Solution

• See Code

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Code

class Solution:
    def complexNumberMultiply(self, a: str, b: str) -> str:
        def get_int(x):
            n, m = x.split('+')
            return int(n), int(m[:-1])
        a_a, a_b = get_int(a)
        b_a, b_b = get_int(b)
        return str(a_a*b_a - a_b*b_b) + "+" + str(a_b*b_a + a_a*b_b) + "i"