Here is a Python program that fulfills your requirements: ```python largest = None smallest = None while True: num = input("Enter a number: ") if num == "done": break try: num = int(num) except ValueError: print("Invalid input") continue if largest is None or num largest: largest = num if smallest is None or num

Question

Here is a Python program that fulfills your requirements:

```python
largest = None
smallest = None

while True:
    num = input("Enter a number: ")
    if num == "done":
        break
    try:
        num = int(num)
    except ValueError:
        print("Invalid input")
        continue

if largest is None or num > largest:
        largest = num
    if smallest is None or num < smallest:
        smallest = num

print("Maximum is", largest)
print("Minimum is", smallest)
```

This program works as follows:

1. It initializes two variables, `largest` and `smallest`, to `None`. These variables will keep track of the largest and smallest numbers entered by the user.

2. It enters an infinite loop, which will keep asking the user for input until the user enters "done".

3. Inside the loop, it first asks the user for input. If the user enters "done", it breaks out of the loop.

4. It then tries to convert the user's input to an integer. If this fails (because the user entered something that's not a number), it prints an error message and skips to the next iteration of the loop.

5. If the conversion to integer succeeds, it checks if the entered number is larger than the current `largest` or smaller than the current `smallest`, and updates these variables if necessary.

6. After the loop, it prints the largest and smallest numbers entered by the user.

Knowee AI · Accepted Answer