course 1 week 4 assignment

[maxtcurie]

https://github.com/brianchiang-tw/Accelerated_Computer_Science_Fundamentals_Specialization/blob/master/Course_1_Object-Oriented%20Data%20Structures%20in%20Cpp/Week_4_Engineering%20Cpp%20software%20solution/Week4_Image_Project/Week4_Image_Project/ImageTransform.cpp

line86, the spot needs to be for the type from unsigned to int

double radius= sqrt(double(pow((int(x)-centerX),2)+pow((int(x)-centerY),2)));