Write the series of git commands that will result in the shown store. You may reference working tree changes with the letter shown in the commit boxes. Commit messages are not necessary. Note: Do not checkout or merge commits directly, use branches instead. You may use more branches than are shown (eg. extra branches in the store are permitted). Note: There is no remote configured. HEAD development F
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- After three records with keys 40, 15, and 18 are inserted into an empty AVL tree, which of the following is correct? Question options: A. a single left rotation is needed at node 18 B. no rotation is needed to maintian AVL tree C. a single right rotation is needed at node 40 D. a single left rotation is needed at node 15solve the question :1- create an AVL tree by inserting the following key:60,20,100,120,80 2- write the necessary command to traverse the tree elements in order. 3- the main class will contain loop Note : write in NetBeanss 8.2After three records with keys 40, 18, and 15 are inserted into an empty AVL tree, which of the following is correct? Question 5 options: no rotation is needed to maintian AVL tree a single right rotation is needed at node 40 a single left rotation is needed at node 18 a single left rotation is needed at node 15
- Which node of the B-tree index contains ROWIDs?a. branch blocksb. root blockc. leaf blocksd. None of the above because the primary key is used to identify rowsconvert UNF for 1NF to 2NF to 3NF, progressively. UNF:Order(OrderID, OrderDate, CustID, CustName, CustPhone, CCNum, CCExpDate, CCBank, BnkContName, BnkContPhone, CustEmail, OrderIP, SiteRefFrom, ShipStreet, ShipCity, ShipSt, ShipZip, OrderLineNum, ItemID, ItemName, ItemDesc, ItemQtyOrdered,ItemListPrice, ItemSalePrice, ItemQtyShip, ShipCharge, Tax, TotalDue)Try switching the joins pthread_join(tid2, NULL); pthread_join(tid1, NULL); Do you see any difference? Please report if and why you do or do not see any difference in terms of the randomness in the result of the shared resource. In the inc_dec_resource() function, implement mutual exclusion (pthread_mutex_lock) to ensure that the result becomes 0 every time when you execute your program. Put your updated code in the report (highlighted) and show your screenshot of the execution by running the script three time using $ time ./shared_resource_mutex. Hint: Your loop is incrementing/decrementing the resource which should be protected by each thread while it is executing that portion. #include <stdio.h> #include <pthread.h> #define iterations 300000000 long long shared_resource = 0; pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; // Thread function to modify shared resource void* inc_dec_resource(void* arg){ //get the pointer from main thread and dereference it…
- Try switching the joins pthread_join(tid2, NULL); pthread_join(tid1, NULL); Do you see any difference? Please report if and why you do or do not see any difference in terms of the randomness in the result of the shared resource. In the inc_dec_resource() function, implement mutual exclusion (pthread_mutex_lock) to ensure that the result becomes 0 every time when you execute your program. Put your updated code in the report (highlighted) and show your screenshot of the execution by running the script three time using $ time ./shared_resource_mutex. Hint: Your loop is incrementing/decrementing the resource which should be protected by each thread while it is executing that portion. /* Compile: gcc -o shared_resouce_mutex shared_resource_mutex.c -lpthread Execute: ./shared_resource_mutex */ #include <stdio.h> #include <pthread.h> #define iterations 300000000 long long shared_resource = 0; pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; // Thread function to…Which of the following technique stores data in a separate entity in case of a collision?a) Open addressingb) Chaining using doubly linked listc) Linear probingd) Double hashingIn a B+-tree, it always requires reorganizing the entire index file to maintain performance. True or False?
- You should solve the collisions with chaining by using linked lists and put values to your hash table after hashing your key. When a table element is empty, you can put the value to the place. But when there is a value in the specified place of hashtable, you should use a linked list structure and put the new value at the end of the linked list of that element. For the hash function, inputs and more details, please refer to what ı wrote #include <stdio.h>#include <stdlib.h> #define ARR_SIZE 22#define HASH_SIZE 10 typedef struct HASH_TABLE_s *HASH_TABLE;typedef struct HASH_TABLE_s{ int key; int flag; void *value;} HASH_TABLE_t[1]; typedef struct LINKED_LIST_NODE_s *LINKED_LIST_NODE;typedef struct LINKED_LIST_NODE_s { LINKED_LIST_NODE next; void *data;} LINKED_LIST_NODE_t[1]; typedef struct LINKED_LIST_s { LINKED_LIST_NODE head;} LINKED_LIST_t[1], *LINKED_LIST; LINKED_LIST linked_list_init() { LINKED_LIST new; new = (LINKED_LIST) malloc(sizeof(LINKED_LIST_t));…The rules for deleting a key k from a node n: Rule 1. If n has more than the number of keys and the k is not the largest in n, simply delete k from n. Rule 2. If n has more than the minimum number of keys and the k is the largest in n, delete k and modify the higher level indexes to reflect the new largest key in n. Rule 3. If n has exactly the minimum number of keys and one of the siblings of n has few enough keys, merge n with its sibling and delete a key from the parent node. Rule 4. If n has exactly the minimum number of keys and one of the siblings of n has extra keys, redistribute by moving some keys from a sibling to n, and modify the higher level indexes to reflect the new largest keys in the affected nodes (if necessary).How do you access, modify, or search a BST (Binary Search Tree) containing a set of user IDs and passwords?