4. (a) Consider two already created singly linked lists List_A and List_B. Define pseudocode/algorithm for two functions i.e., differenceAB( ) and intersectAB ( wherein the function differenceAB( )...

please answer question completely using C language only

Extracted text: 4. (a) Consider two already created singly linked lists List_A and List_B. Define pseudocode/algorithm for two functions i.e., differenceAB( ) and intersectAB ( wherein the function differenceAB( ) generates the list which contains the nodes only in List_A and not in List_B. Whereas the function intersectAB( ) generates the resultant list which contains the nodes common in both List A and List_B. ), (b) Given five memory partitions of 200 KB, 600 KB, 300 KB, 400 KB and 700 KB. How would the first-fit, best-fit, worst-fit and next-fit algorithms place processes of 312 KB, 517 KB, 212 KB and 526 KB.