Computer science homework help, one step at a time

1. Choose Computer science and type the question, or write it on the whiteboard.
2. Say where you're stuck: "I don't understand the question", "I don't know how to start", or "check my answer".
3. The tutor explains one step and asks you to try the next one.
4. It checks your working and points to the first step that went wrong, if any.
5. Ask for a similar question to make sure you can do it on your own.

A student's program should add up the numbers 1 to 10 but prints 45:

total = 0
for i in range(1, 10):
    total = total + i
print(total)

The tutor asks: "Which numbers does range(1, 10) produce? Try printing i inside the loop." The student sees it stops at 9, because the end of a range isn't included, and changes it to range(1, 11), which prints 55.

See our AI computer science tutor and how to learn Python.

• Paste the exact error message: the last line usually names the problem.
• Print values inside loops to see what's happening.
• Explain your code line by line; the bug often appears while you explain it.

TutorAura explains each question properly: what it's asking, every step with the reason it works, and the answer. Then it gives you one like it to try on your own, so you can do the next question by yourself (and in the test, where there's no help). Prefer to work it out yourself? Switch on Guide me and it coaches you one step at a time. It won't write graded essays or written answers for you to hand in. Follow your school's rules on using AI for homework.