What will this code output?

Question

BlackTom AI · Accepted Answer

Question: What will this code output?

Options to consider:
1) Logical error, no output
2) Infinite print loop forever
3) Stack overflow immediately
4) Prints 1 and stops
5) RecursionError after many calls

Option 1: Logical error, no output. This is not correct because the function prints a value before recursing, so there will be output unless an exception interrupts the flow. The presence of the print statement implies some output will occur prior to any termination.

Option 2: Infinite print loop forever. The code does not include a loop structure that would repeatedly execute the same block without growing the call stack. Instead, it recursively calls itself with ever-increasing n, which means it will keep creating new function calls rather than looping in place. Therefore, this option is inaccurate.

Option 3: Stack overflow immediately. The recursion does not terminate immediately or after a few steps; it keeps calling loop with n+1 without a base case. A stack overflow occurs after many recursive frames are accumulated, not immediately, so this statement is misleading.

Option 4: Prints 1 and stops. The function prints the current n and then recurses with n+1, so it will not stop after printing 1. It will continue printing 2, 3, and so on until a recursion limit is reached. Hence this option is incorrect.

Option 5: RecursionError after many calls. Because there is no base case, each call pushes a new frame onto the call stack. Python will eventually exhaust the recursion depth limit and raise a RecursionError after a large number of calls, leading to an error rather than an infinite halt or immediate crash. This aligns with how Python handles deep recursion with no termination condition.

In summary, each incorrect choice fails to capture the actual behavior: there is output before termination (so not a logical error with no output), there is no infinite in-place loop, the overflow is not immediate, it does not stop after printing 1, and the real outcome is a RecursionError after many recursive calls.

IS 4485-001 Fall 2025 Final Exam Practice 2

What will this code output?

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