/* Complex Number Multiplication A complex number can be expressed as (a, b) or as a + bi. a is called the number's real part, and b is called its imaginary part. i is defined by i x i = -1. Write a program that reads complex numbers from the input, multiplies, and prints the result. For example: Input: 1+2i * 3+4i (×) (notice the spaces between each number and the operator) also: 0=0+0i Output: (-5,10 ) Explanation: (1+2i) *(3+4i) = 1*3 + 1*4*i + 2*i*3 + 2*i*4*i = 3 + 10*i + 8*i*i = 3 + 10*i + -8 = -5 + 10i !!WARNING!! If you want to compute 8/4 you need to enter 8+0i / 4+0i !!!! Bonus: Implement complex number division. Input: same as (×) but change * with whatever you want from: +,-,/ and ^ (power, in C++ pow()) !!WARNING!! ^ is very approximative ! */ #include #include #include #include #include using namespace std::complex_literals; std::complex to_complex(std::string s){ std::istringstream is ('('+s+')'); std::complex c; is>>c; return c; } std::string get_real(std::string s){ int r,l1=s.length(); for(int i=0;i!=l1;i++){ int ch = (int)s.at(i); if((ch==43 || ch==45) && i!=0){//+- r = i; break; } } std::string str = s.substr(0,r); return str; } std::string get_im(std::string s){ int r,l1=s.length(); for(int i=0;i!=l1;i++){ int ch = (int)s.at(i); if((ch==43 || ch==45) && i!=0){//+- r = i; break; } } std::string str = s.substr(r); int im_l = str.length(); std::string res = str.substr(0,im_l-1); return res; } int main(){ std::complex z1,z2; std::string in1,in2; char si; std::cin>>in1>>si>>in2; std::string re1=get_real(in1),im1=get_im(in1); std::string re2=get_real(in2), im2=get_im(in2); std::stringstream strs1,strs2; strs1<

complex_built_in.cpp