What is the real meaning of "pointer in the c programming"

Question

which part of programming i can use it frequently?

Answer 1

pointer is a variable that contains the address of another variable.

consider the following code snippets:

int a=5;
int *ptr=&a;//ptr is a pointer
printf("%p\n",ptr);//prints address
printf("%p\n",&a);//prints address
printf("%d\n",*ptr);//prints 5

& returns the memory address of it's operand.

when * is applied to pointer, the pointer can access the value stored at particular memory location

Answer 2

Pointer is a variable which hold the address of another variable

Answer 3

Which point address of pointed value

Answer 4

Think of a shared folder on a computer. If multiple users need access to that one folder from there own accounts. Having that shared folder allows them all to make changes. Same thing with pointers, they link multiple variables to one in the location of memory so that each can change the value of the original variable. Hopefully that makes since.✌

Answer 5

Or which store the address