Solve these functions with nested image-range loops (as opposed to the foreach we've used previously). Here each problem has its own link since there are so many cases. All parts of HW2 are Due Wed Oct 9th at 11:55pm.
a. image range-hw-a squeeze_height()
b. image range-hw-b reflect()
c. image range-hw-c copies_n()
d. image range-hw-d purple()
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