solutions update from a4bf63e

100_Numpy_exercises_with_solutions.md

@@ -130,6 +130,11 @@ print(Z)
 Z = np.ones((5,5))
 Z = np.pad(Z, pad_width=1, mode='constant', constant_values=0)
 print(Z)
+
+# Not a solution to this problem but good to know: using fancy indexing for in-place edit
+Z[:, [0, -1]] = 0
+Z[[0, -1], :] = 0
+print(Z)
 ```
 #### 17. What is the result of the following expression? (★☆☆)
 ```python