The use of a pointer requires the computer to do a double lookup.

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When a pointer is used, the computer needs to first look up the value of the pointer variable to determine the memory address it points to, and then look up the value stored at that memory address. This is known as a double lookup, which can have performance implications for certain types of operations. When a pointer is used, the computer first looks up the memory address pointed to by the pointer and then accesses the value at that address. This double lookup adds additional overhead and can slow down the program.

The Use of a Pointer Requires the Computer to Do