Divide and Conquer Problems in JAVA

Binary Search
Merge Sort
Quick Sort
Median Finding
Min and Max Finding
Matrix Multiplication
Closet Pair Problem

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Deleting a Node by passing data in LInkedList

Deleting a Node by passing data in LInkedList:- The node can be deleted by passing the data value in a function.Here we have three pointers one to traverse the list other to point current node and third one to point previous of current node. //deleting a given key public Node deleteKeyNode ( Node head , int key ) { //traverse pointer Node temp = head ; //previous pointer Node prevtemp = temp ; while ( temp != null ) { //when key is at head position if ( key == head . data ) { head = head . next ; System . out . println ( "head is deleted" ); return head ; } //when key is at any position other than head if ( temp . data == key ) { prevtemp . next = temp . next ; temp . next = null ; temp = prevtemp ; } prevtemp = temp ; temp = temp . next ; } return head ; }

Adding Node at the End of Linked List

Adding Node at the End of Linked List:- The method takes two parameter one a head node of a linked list and other data too insert. public void addNodeEnd ( Node head , int data ) { if ( head == null ) { System . out . println ( "list is empty" ); return ; } Node node = new Node ( data ); Node temp = head ; while ( temp . next != null ) { temp = temp . next ; } temp . next = node ; } To Know the basic structure of the linked list click here

Concepts of Computer Science

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