Here is a Python program that simulates the countdown sequence for a historic rocket launch:

```python
def countdown(n):
# Base case: if n is 0, print "Liftoff!" and return
if n == 0:
print("Liftoff!")
return
# Recursive case: print n, then call countdown with n-1
else:
print(str(n) + "-", end="")
countdown(n-1)

# Test the function
countdown(10)
```

This program defines a recursive function `countdown` that takes an integer `n` as input. If `n` is 0, it prints "Liftoff!" and returns. Otherwise, it prints `n` followed by a hyphen, then calls itself with `n-1`. This continues until `n` is 0, at which point the function prints "Liftoff!" and returns. The `end=""` argument in the `print` function is used to prevent it from printing a newline after each number, so the countdown is printed on a single line.

Question

Here is a Python program that simulates the countdown sequence for a historic rocket launch:

```python
def countdown(n):
    # Base case: if n is 0, print "Liftoff!" and return
    if n == 0:
        print("Liftoff!")
        return
    # Recursive case: print n, then call countdown with n-1
    else:
        print(str(n) + "-", end="")
        countdown(n-1)

# Test the function
countdown(10)
```

This program defines a recursive function `countdown` that takes an integer `n` as input. If `n` is 0, it prints "Liftoff!" and returns. Otherwise, it prints `n` followed by a hyphen, then calls itself with `n-1`. This continues until `n` is 0, at which point the function prints "Liftoff!" and returns. The `end=""` argument in the `print` function is used to prevent it from printing a newline after each number, so the countdown is printed on a single line.

Knowee AI · Accepted Answer

Here is a Python program that simulates the countdown sequence for a historic rocket launch:

```python
def countdown(n):
    # Base case: if n is 0, print "Liftoff!" and return
    if n == 0:
        print("Liftoff!")
        return
    # Recursive case: print n, then call countdown with n-1
    else:
        print(str(n) + "-", end="")
        countdown(n-1)

# Test the function
countdown(10)
```

This program defines a recursive function `countdown` that takes an integer `n` as input. If `n` is 0, it prints "Liftoff!" and returns. Otherwise, it prints `n` followed by a hyphen, then calls itself with `n-1`. This continues until `n` is 0, at which point the function prints "Liftoff!" and returns. The `end=""` argument in the `print` function is used to prevent it from printing a newline after each number, so the countdown is printed on a single line.

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