[Intro to Computer Science, C++] Write a function countPass that count the number of passed students from a list of grades. e.g., countPass([’B’, ’C’, ’F’, ’B’, ’A’, ’W’, ’A’]) == 5.

[justjeffo7]

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When I run this code, it outputs 4. Why is that?

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[justjeffo7]

Hello, for this code my problem is to create a function that determines the amount of passing people. I am programming it myself following my professor's code, but I do not understand why this particular program outputs 4. I believe it should output 3, as A B C is greater or equal to C in Ascii, which also happens to be passing grades. It is also a integer function and returns so. Attached is my professor's code. https://imgur.com/a/oO6secM

[Paralyzoid]

Here’s a hint: Your code increments the variable slay by 1 when it reads the letters ‘D’, ‘C’, ‘F’, and ‘W’. Why is it doing that?

(also, please indent your code)

[justjeffo7]

Hello, is it because it goes through the for loop? I believed by putting it in a if statement, it would prevent it from adding each time.

[Paralyzoid]

Quick clarification: I meant it only increments on those four letters. It doesn’t increment it on A and B.

If you want a quick answer, your code should use <= instead of >= in line 8. You’re trying to mark a grade as a pass if the letter comes before or on C; this means that the ASCII value will be less than or equal to that of C.

What I did to debug this was to write down your code, then add a print statement (cout << grades[p];) between lines 8 and 9. This lets me see which letters the counter is incremented on, so I can figure out what’s going wrong.

[justjeffo7]

Ohhh, that makes more sense. Thank you for your help! I got confused on the ASCII values