Please help me to build a polygon.

[mansoorwaqas]

Solved

[coder777]

can we take input edges from user???

Sure. Use cin

http://www.cplusplus.com/reference/iostream/cin/

and a loop for the 4 points, like so

for(int i = 0; i < 4; ++i)
{
  cout << "X: ";
  cin >> points[i * 2];
  cout << "Y: ";
  cin >> points[(i * 2) + 1];
}