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Dynamic Programming in JAVA

  • String
    • Longest common subsequence
    • longest increasing subsequence
    • longest common substring
    • edit distance
  • Graphs
    • bellman ford
    • floyd's all pair shortest
  • chain matrix multiplication
  • subset sum
  • 0/1 knapsack
  • Travelling salesman problem



Popular posts from this blog

How to design a Node in Tree?

How to design a Node in Tree?

There are three main components of a tree in a node.

 1) Integer holding data.
2) Left pointer holding node in a left subtree.
3) Right pointer holding node in a right subtree.

The following design is having data of int type and left,right pointers of a node to the subtrees.

package com.BST;publicclassNode{int data; Node left; Node right;/** * @return the data */publicNode(int data){this.left=null;this.right=null;;}publicintgetData(){return data;}/** * @param data the data to set */publicvoidsetData(int data){ data;}/** * @return the left */public Node getLeft(){return left;}/** * @param left the left to set */publicvoidsetLeft(Node left){this.left= left;}/** * @return the right */public Node getRight(){return right;}/** * @param right the right to set */publicvoidsetRight(Node right){this.right= right;}/* (non-Javadoc) * @see java.lang.Object#toString() */@Overridepublic String toString(){return"Node [data=&quo…

Heap implementation in JAVA

In this tutorial we will see all the functionalities of heaps implemented through java language.

package com.problems.heap;publicclassHeapFunctions{//Function to generate maxheapify where root is max than childspublicvoidmaxHeapify(int Arr[],int i,int N){int largest;int left =2*i+1;//left childint right =2*i +2;//right child System.out.println("left"+" "+left); System.out.println("right"+" "+right); System.out.println("Max size"+" "+N);if(left< N && Arr[left]> Arr[i]){ largest = left; System.out.println("largest left"+largest);}else{ largest = i; System.out.println("largest i"+largest);}if(right < N && Arr[right]> Arr[largest]){ largest = right; System.out.println("largest right"+largest);}if(largest != i ){ System.out.println("No largest"+largest); Arr=swap (A…