The second line contains n integers. Each integer is between 1 and 100.<\/li>\n<\/ul>\nOutput<\/h3>\n
\n Output the average of the list rounded to one decimal point.\n <\/p>\n
Example<\/h2>\n
\nInput:<\/strong>
\n 5
\n 10 20 30 40 50
\nOutput:<\/strong>
\n 30.0\n <\/p>\nProblem Solving Process<\/h2>\n1. Problem Analysis<\/h3>\n
\n To solve this problem, you can follow these steps: <\/p>\n
\n- Receive integers from the list.<\/li>\n
- Calculate the total sum of the list.<\/li>\n
- Divide the total sum by the length of the list (n) to calculate the average.<\/li>\n
- Round the calculated average to one decimal point.<\/li>\n<\/ol>\n
2. Algorithm Design<\/h3>\n
\n Based on the above steps, let\u2019s design the algorithm.
\n 1. Get n from the user.
\n 2. Input n integers and store them in the list.
\n 3. Calculate the sum of the list.
\n 4. Divide the sum by n to calculate the average.
\n 5. Output the average.\n <\/p>\n
3. Python Code Implementation<\/h3>\n
\n Now we will implement the above algorithm in Python code.
\n The code is as follows:\n <\/p>\n
\ndef calculate_average():\n # Get the length from the user\n n = int(input(\"Enter the length of the list: \"))\n # Create the list\n numbers = list(map(int, input(\"Enter integers (separated by spaces): \").split()))\n \n # Validity check\n if len(numbers) != n:\n print(\"The number of inputted integers does not match the length of the list.\")\n return\n \n # Average calculation\n total = sum(numbers)\n average = total \/ n\n \n # Round to one decimal place\n average_rounded = round(average, 1)\n \n # Output the result\n print(f\"Average of the list: {average_rounded}\")\n\n# Function call\ncalculate_average()\n <\/code><\/pre>\n4. Code Explanation<\/h3>\n
\n 1. Getting Input<\/strong>: Get `n` and then input `n` integers to store them in the list `numbers`.
\n
2. Validity Check<\/strong>: Check if the number of inputted integers matches `n`.
\n If not, output an error message and exit the function.
\n
3. Calculate Sum and Average<\/strong>: Calculate the sum of the list and then calculate the average.
\n
4. Rounding<\/strong>: Use the `round()` function to round the average to one decimal point.
\n
5. Output<\/strong>: Finally, output the calculated average.\n <\/p>\n5. Exception Handling and Additional Considerations<\/h2>\n
\n – The program should handle cases where the input values do not meet the conditions.
\n For example, if the length of the list and the number of inputted integers differ, an error message should be displayed.\n <\/p>\n
\n – Additionally, since the `input()` function returns a string, it needs to be converted to integers.
\n Here we used the `map(int, …)` function to convert all elements of the list into integers.\n <\/p>\n
6. Additional Problem: Improve the Average Calculation Function<\/h2>\n
\n After solving the above problem, several improvements can be added.
\n For instance, the function could provide guidance messages to the user when receiving input.
\n Providing user-appropriate feedback enhances the user experience.\n <\/p>\n
Conclusion<\/h2>\n
\n In this post, we covered the problem of calculating the average from a list.
\n Such foundational problems help us understand the basic syntax of Python and data processing methods.
\n Building basic problem-solving skills is essential before tackling more complex problems.
\n Keep progressing through algorithms and data handling skills step by step using Python.\n <\/p>\n
Thank you!<\/p>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"
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