| Memory, C Variables, and Pointers

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- I have trouble allocating memory, my program crashes on the second run.
- I can't understand C matrices!
- How do I store variables so they retain their values, like for highscores?
- Global variables retain value?
- How can you control where data is stored in memory and access it?
- What is so horrible about global variables?
- How can you store a number such as 0x4c00 in a pointer?
- Is it possible to add one or two bytes to a longword pointer?
- Why can't you assign values to dereferenced void pointers?
- How can I have large global variables that don't take up space in my program file?
- How can I create a dynamic two-dimensional array?
- How can I create variable-size arrays?
- Why do I get "Value computed is not used" when working with pointers?