C program for combination of first fit best fit worst fit using linked list?

Answer 1

To implement a memory allocation strategy using linked lists in C for first fit, best fit, and worst fit methods, you'll need to define a Node structure representing free memory blocks. For each allocation method, traverse the linked list of free blocks to find a suitable block based on the chosen strategy: first fit finds the first adequate block, best fit searches for the smallest block that fits, and worst fit seeks the largest available block. After finding a suitable block, you may need to split it if it's larger than the requested size, updating the linked list accordingly. Here’s a brief pseudocode outline for each method:

typedef struct Node {
    int size;
    struct Node* next;
} Node;

Node* first_fit(Node** head, int size);
Node* best_fit(Node** head, int size);
Node* worst_fit(Node** head, int size);

You would implement each function by iterating through the linked list and applying the respective logic for allocation.