Control Flow and Looping Flashcards

What is the output of: ```python for i in range(5): if i == 3: break else: print('no break') print('end') ```

Answer: end

The break at i==3 prevents the else clause from executing, so only 'end' is printed.

What type does `range(5)` return in Python 3?

Answer: range object

In Python 3, range() returns a range object (lazy sequence), not a list.

What is the output of this code? ```python x = 0 while x < 5: x += 1 if x == 3: continue print(x) ```

Answer: 1 2 4 5

continue skips the print when x == 3, so 3 is not printed but all other values 1-5 are.

What does `any([False, False, True, False])` return?

Answer: True

any() returns True if at least one element is truthy — here True is present in the list.

What is the result of: ```python total = sum(x**2 for x in range(4)) print(total) ```

Answer: 14

0²+1²+2²+3² = 0+1+4+9 = 14.

Which control flow statement immediately terminates the current function and optionally returns a value?

Answer: return

return exits the current function, optionally passing a value back to the caller.

What is the output of: ```python for i in range(3): for j in range(3): if j == 1: break print(i, j) ```

Answer: 0 1, 1 1, 2 1

break exits the inner loop when j==1, so after each inner loop j is 1 when it breaks.