열혈 c++ Chapter02 문제02-3 #include using namespace std; typedef struct __point { int xpos; int ypos; }point; point& pntadder(const point& p1, const point& p2) { point* pptr = new point; pptr->xpos = p1.xpos + p2.xpos; pptr->ypos = p1.ypos + p2.ypos; return *pptr; } int main() { point* pptr1 = new point; pptr1->xpos = 3; pptr1->ypos = 30; point* pptr2 = new point; pptr2->xpos = 70; pptr2->ypos = 7;..