Cheat Engine

[Estx]

samurai: Your code is slightly better, I've hardly had to use a generic list because I've always predetermined the size of my array (there-for rarely used Array.Resize()). Doesn't really matter that you missed out using decimals because I suppose you don't need pin-point precision for the example lol.

Did some performance tests though, no speed difference for 500 grades.
My example speed (ticks): 156250
Your example speed (ticks): 156250
Although the performance hit wont come in until much higher variables are stored, it becomes just coding preference and efficiency again. Even though I would say Lists are preferable compared to resizing arrays.

Lol anyway! From my point of view, both samuri25404 and HalfPrime have the same conclusion but aren't understanding each other. You're both right >.>

As for the topic starter, your answer is on the first page. Either of the last two posts. Although if you keep on reading you might learn a thing or two anyway. ;D

[DoomsDay]

Clarification:
A while loop is a modification of the do-while loop, which simply jumps to the check first. In this case, a while loop is is not a greate solution, nor is the do-while - the most efficient would be a couple of goto statements:
The do-while flow looks like this:

[samuri25404]

Both of the things that you posted are considered bad practice in the programming world (or at least, the C#/.NET world).

I posted an ideal, common solution.