The memory location of integer variable an is provided by &a;. The type of the variable an is integer, not integer pointer. Therefore, we utilise &a to obtain its address.
Variable and other data are kept in the main memory (sometimes referred to as the memory) while a programme is running. The computer's memory appears to a programme as a set of bytes, each of which has an integer address. For instance, there are bytes with addresses 1, 2, and so on, all the way up to a very big number. A software has the ability to get the byte's current contents at a certain memory location and write a specific value in that byte.
Only 8 bits make up a byte. The majority of the data pieces you employ are bigger than that. For instance, an int value typically has 32 bits, or 4 bytes, of space.
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