0537.cpp (315B)
1 class Solution { 2 public: 3 string complexNumberMultiply(const string num1, const string num2) { 4 int a, b, c, d; 5 char t; 6 stringstream(num1) >> a >> t >> b; 7 stringstream(num2) >> c >> t >> d; 8 return to_string(a * c - b * d) + "+" + to_string(a * d + b * c) + "i"; 9 } 10 };