show an example of an user inputs a list of positive numbers terminated by 0 into an array, find the mean of the numbers in the array, and outputs th result. use a subprogram to input the numbers, a function to find the mean, and a subprogram to output the result
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Sure! Here is an example code in Python that demonstrates how to achieve this:
```python
def input_numbers():
numbers = []
while True:
num = int(input("Enter a positive number (or 0 to terminate): "))
if num == 0:
break
numbers.append(num)
return numbers
def calculate_mean(numbers):
total = sum(numbers)
mean = total / len(numbers)
return mean
def output_result(mean):
print("The mean of the numbers is:", mean)
# Main program
number_list = input_numbers()
mean_value = calculate_mean(number_list)
output_result(mean_value)
```
In this example, there are three subprograms:
1. The `input_numbers` function prompts the user to input a series of positive numbers terminated by 0, and stores them in a list called `numbers`.
2. The `calculate_mean` function takes in the `numbers` list as a parameter, calculates the mean by summing all the numbers and dividing by the length of the list, and returns the mean value.
3. The `output_result` function takes the mean value as a parameter and prints it out as the result.
In the main program, we first call the `input_numbers` subprogram to get the list of numbers from the user. Then, we pass this list as an argument to the `calculate_mean` function to compute the mean value. Finally, we pass the mean value to the `output_result` subprogram, which simply prints the result on the screen.