CS50 Pset 4 Reflect with Bubble Sort

Question

I tried using bubble sort for Reflect, it goes something like this

pretend I defined temp here for (int i = 0; i = height; i++) for (int j = 0; j = width - 1; j++) for (int k = 0; k = width - 1; k++) temp = image[i][k+1]; image[i][k+1] = image[i][k]; image[i][k] = image[i][k+1];

It should basically bubble sort in a way that the image will reflect. Why is the image still unchanged?

Answer 1

Bubble sort seems quite an inefficient way to go about reflecting the image. I suggest that, for the problem set, you try to think of a more direct way to achieve the same thing.

But regarding your code:

1. note that you define temp, but then don't use it. Look at your code and see where it should be used;
2. there is a problem in your for loop declarations. Remember that the middle part is the condition that has to be satisfied for the loop to continue, e.g. for (int x = 0; x < 20; x++).

(I realise I'm not strictly answering your question, but because this is for assessment, I'd rather guide you than just blurt out the answers)