CPP Program tof find the 180 degree reflection of one point around another point .
#include <bits/stdc++.h> NEW_LINE using namespace std ; void findPoint ( int x1 , int y1 , int x2 , int y2 ) { cout << " ( " << 2 * x2 - x1 << " , ▁ " << 2 * y2 - y1 << " ) " ; }