Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Find the errors and circle them and explain why they need to be changed
Transcribed Image Text:The image illustrates a flowchart for a program designed to retrieve student names and quiz scores. The program continues to prompt for student names until "XXX" is entered to quit. For each student, quiz scores are entered until a score of 0 is specified. Finally, the cumulative score for each student is displayed.
### Flowchart Explanation:
1. **Start Node:**
- The process begins here.
2. **Declarations:**
- Variables are defined:
- `string name`
- `num score`
- `string QUIT = “XXX”`
- `num QUIT_SCORE = 0`
- `num total`
3. **Housekeeping Process:**
- Outputs the message: “Please enter name or XXX to quit.”
- Inputs a student's name into the variable `name`.
4. **Decision Node:**
- Checks whether `name` is not equal to `QUIT` (XXX).
- **Yes Path:** If true, continues to detail loop.
- **No Path:** If false, proceeds to end of job process.
5. **Detail Loop Process:**
- Actions that involve entering quiz scores and calculating totals would occur here.
6. **End of Job Process:**
- Outputs the message: “Job complete.”
- Ends the process.
7. **Stop Node:**
- The process terminates here.
This flowchart effectively outlines the logical sequence for entering and processing student names and scores, culminating in a display of results once all inputs have been processed or the quit condition is met.
Transcribed Image Text:The flowchart represents a function called `detailLoop()` used to process scores. Below is a detailed transcription and explanation of each step in the flowchart:
1. **Start**: The process begins with the `detailLoop()` function.
2. **Output Prompt**: The system outputs the prompt, “Enter score or 0 to quit”.
3. **Input Score**: The user inputs a score.
4. **Decision Point (QUIT?)**:
- Checks if the entered score equals 0.
- If Yes: The flow moves to the output section with the total score.
- If No: The process proceeds to update the total.
5. **Update Total**: The current score is added to the total using `total = total + score`.
6. **Loop Back**: After updating the total, the flow returns to the beginning, prompting the user to enter another score.
7. **Output Total Score**:
- When a score of 0 is entered, the output displays the name followed by “Total score: ” and the accumulated score.
8. **End**: The function returns and concludes the operation.
This flowchart illustrates a looping mechanism for continuously collecting scores and accumulating their total until the user decides to quit by inputting 0.
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