Enzo Jade
Today, we'll dive into some advanced concepts, offer tips to overcome common challenges, and even provide expert solutions to master-level programming questions.

Question 1:
Consider the following C code snippet:


int main() {
int x = 10;
int *ptr = &x;

printf("Value of x: %dn", x);
printf("Address of x: %pn", &x);
printf("Value pointed to by ptr: %dn", *ptr);
printf("Address stored in ptr: %pn", ptr);

return 0;
Explain the output of this code snippet. What are pointers? How are they used in this code, and what do the various printf statements output?

Solution 1:
In this code snippet, we declare an integer variable x and initialize it to 10. We then declare a pointer variable ptr of type integer pointer (int *) and assign it the address of x using the address-of operator (&).

The first printf statement prints the value of x, which is 10.
The second printf statement prints the address of x.
The third printf statement prints the value pointed to by ptr, which is the value stored at the address held by ptr, i.e., 10.
The fourth printf statement prints the address stored in ptr.
Pointers in C are variables that store memory addresses. They are used to store addresses of variables, dynamically allocate memory, and create data structures such as linked lists and trees.

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3 months ago

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