Sorting Using swap method

Sorting Using Swap method which takes only one arguments and swap with zero index.

Spiral Matrix

import java.io.*;

public class CircualrMatrix

    {

        public static void main(String args[])throws IOException

        {

        

        int[][] A = { { 1, 2, 3  }, { 5, 6, 7 }, { 9,10,11 } };

        spiralOrder(A);

        }

        

        public  static void spiralOrder(int[][] matrix)

        {

             if(matrix.length == 0)

                 return;

             // Initialize our four indexes

             int top = 0;

             int down = matrix.length - 1;

             int left = 0;

             int right = matrix[0].length - 1;

         

             while(true)

             {

                 // Print top row

                 for(int j = left; j <= right; ++j) 

                 System.out.print(matrix[top][j] + " ");

                 top++;

                 if(top > down || left > right) break;

                 //Print the rightmost column

                 for(int i = top; i <= down; ++i) System.out.print(matrix[i][right] + " ");

                 right--;

                 if(top > down || left > right) break;

                 //Print the bottom row

                 for(int j = right; j >= left; --j) System.out.print(matrix[down][j] + " ");

                 down--;

                 if(top > down || left > right) break;

                 //Print the leftmost column

                 for(int i = down; i >= top; --i) System.out.print(matrix[i][left] + " ");

                 left++;

                 if(top > down || left > right) break;

             }

         }

    }

LCA - Lower Common Ancestor

• http://www.java2blog.com/2016/04/lowest-common-ancestor-of-binary-tree.html

DFS and BFS

• http://www.java2blog.com/2015/12/depth-first-search-in-java.html

• http://www.java2blog.com/2015/12/breadth-first-search-in-java.html

Binary Search Tree

• Binary Search Tree
• http://www.tutorialspoint.com/data_structures_algorithms/binary_search_algorithm.htm

Serialize and De-Serialize Binary Search Tree

• Serialize and De-Serialize Binary Search Tree
• https://www.careercup.com/question?id=9253182
• http://www.geeksforgeeks.org/618/