Add complete assignment description and starter code.

testing_code/p1.py

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+pi = 3.1415
+r = 8.0
+circle_area = pi * r * r
+circle_circum = pi * 2 * r
+sphere_vol = (4.0 / 3.0) * pi * r * r * r
+sphere_surf_area = 4 * pi * r * r

testing_code/p2.py

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+a = True
+b = False
+x = 7
+if a:
+    x = 5
+    if b:
+        y = 4
+    else:
+        y = 2
+
+z = (x * 3 * 7) / y
+
+if z > 10:
+    y = 5

testing_code/p3.py

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+# This program computes and returns the n'th Fibonacci number.
+n = 6
+f0 = 0
+f1 = 1
+i = 0
+while True:
+    fi = f0 + f1
+    f0 = f1
+    f1 = fi
+    i = i + 1
+    if i >= n:
+        break
+
+f = f0