/* A Cartesian plane is defined by two perpendicular number lines: the x-axis, which is horizontal, and the y-axis, which is vertical. Using these axes, we can describe any point in the plane using an ordered pair of numbers. Task: Write a program which takes two different points, A(x1,y1) and B(x2,y2), and returns the distance between these two points. The distance formula is the Pythagorean Theorem. */ #include #include #include using namespace std; class PointParser{ public: int x1=0, x2=0, y1=0, y2=0; PointParser(string str){ size_t fstOpenPar = str.find("("); if(fstOpenPar!=std::string::npos){ size_t fstComma = str.find(","); if(fstComma!=std::string::npos){ this->x1 = stoi(str.substr(fstOpenPar+1, fstComma-fstOpenPar-1)); size_t fstClosePar = str.find(")"); if(fstClosePar!=std::string::npos){ this->y1 = stoi(str.substr(fstComma+1, fstClosePar-fstComma-1)); string secondstr = str.substr(fstClosePar+1,str.length()); size_t sndOpenPar = secondstr.find("("); if(sndOpenPar!=std::string::npos){ size_t sndComma = secondstr.find(","); if(sndComma!=std::string::npos){ this->x2 = stoi(secondstr.substr(sndOpenPar+1, sndComma-sndOpenPar-1)); size_t sndClosePar = secondstr.find(")"); if(sndClosePar!=std::string::npos){ this->y2 = stoi(secondstr.substr(sndComma+1, sndClosePar-sndComma-1)); } } } } } } }; }; int main() { string strPoints; cout << "Enter points in the form: (x1,y1) (x2,y2)." << endl; getline(cin,strPoints); PointParser* pp = new PointParser(strPoints); float distance = sqrt(pow((pp->x1-pp->x2),2)+pow((pp->y1-pp->y2),2)); cout << "Distance between points " << strPoints << " is: " << distance; delete pp; return 0; }

[C++] Calculate the Distance