Hi everyone. How can i do for scrolling the elements of a bidimentional table :
1)Only the elements above the two diagonals.
2)Only the elements under the two diagonals.
3)Only the elements in the right of the two diagonals.
4)Only the elements in the left of the two diagonals.
Thank you!
First you grab some graph paper (or just draw some 5x5 or 7x7 grids - can they be even sizes?)
Then fill in a "before" and "after" sketch of what a single "scroll" event would do, and then figure out an algorithm to do it.
Draw another one, and re-run your algorithm to see if it still works. Repeat until you have what seems a solid approach.
When you understand the problem on paper, try and do the same thing in code.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
ok, i found it. Thank you!
