Python Nested For Loops

What is the output of the following nested for loop in Python? for i in range(3): for j in range(2): print(i, j)

• The output will be: 0 0, 0 1, 1 0, 1 1, 2 0, 2 2

• The output will be: 0 0, 0 1, 1 0, 1 1, 2 0, 3 0

• The output will be: 0 0, 0 1, 1 0, 1 1, 2 0, 2 1

• The output will be: 0 0, 0 1, 1 0, 1 1, 2 0, 3 1

How many times will the inner loop run in the following nested for loop? for i in range(5): for j in range(3): print(i, j)

• 5

• 15

• 8

• 3

What will be the output of the following nested for loop? for i in range(2, 5): for j in range(1, 3): print(i * j)

• 2 4 3 6 4 8

• 1 2 2 4 3 6

• 2 3 4 5 6

• 3 6 4 8 5 10

Write a nested for loop in Python to print the following pattern: 1 1 2 1 2 3 1 2 3 4

• for i in range(1, 5): for j in range(1, i+1): print(j, end=' ') print()

• for i in range(1, 5): for j in range(1, 5): print(j, end=' ') print()

• for i in range(1, 5): for j in range(1, i+2): print(j, end=' ') print()

• for i in range(1, 5): for j in range(1, i): print(j, end=' ') print()

What is the purpose of using nested for loops in Python?

• To iterate over multiple sequences or perform repetitive tasks within a sequence of sequences.

• To perform non-repetitive tasks within a sequence of sequences

• To skip the iteration process and move to the next sequence

• To create a single loop for iterating over multiple sequences

Explain the concept of iterating over a 2D list using nested for loops in Python.

• Using if-else statements instead of for loops

• The correct answer for the question is to use nested for loops to iterate over the rows and columns of the 2D list.

• Using a single for loop to iterate over both rows and columns simultaneously

• Using while loops instead of for loops

What is the difference between a nested for loop and a regular for loop in Python?

• The main difference is that a nested for loop contains another for loop within its block, allowing for iteration over multiple sequences.

• A regular for loop cannot be used for iteration

• A nested for loop can only iterate over a single sequence

• A regular for loop can only iterate over a single sequence

How can nested for loops be used to iterate over a 2D array in Python?

• By using nested for loops to iterate over the rows and columns of the 2D array.

• By using a single for loop to iterate over the entire 2D array

• By using a while loop to iterate over the rows and columns of the 2D array

• By using if-else statements instead of for loops to iterate over the 2D array

What are some common mistakes to avoid when using nested for loops in Python?

• Forgetting to decrement the loop variable

• Using different loop variable names for nested loops

• Avoiding common mistakes such as forgetting to increment the loop variable, using the same loop variable name for both loops, and not properly understanding the scope of variables within nested loops.

• Properly understanding the scope of variables within nested loops