Python Coding challenge - Day 657| What is the output of the following Python Code?

 

Code Explanation:

1. Creating a NumPy array x

x = np.array([4, 5, 6])

Creates a NumPy array x with elements [4, 5, 6].

2. Assigning y to x

y = x

Assigns y to reference the same array object as x.

So, y and x point to the same data in memory.

3. Modifying an element of y

y[2] = 10

Changes the value at index 2 of y to 10.

Since x and y share the same data, this change also affects x.

Now both x and y are [4, 5, 10].

4. Creating a copy z of x

z = x.copy()

Creates a new independent copy of x and assigns it to z.

z now holds [4, 5, 10] initially but is a different object in memory.

5. Modifying an element of z

z[0] = 7

Changes the first element of z to 7.

Now, z is [7, 5, 10].

This does not affect x or y.

6. Calculating and printing the sum

print(np.sum(x) + np.sum(y) + np.sum(z))

Sum of x = 4 + 5 + 10 = 19

Sum of y = same as x = 19

Sum of z = 7 + 5 + 10 = 22

Total = 19 + 19 + 22 = 60

Output:

60

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