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450-Coding-Questions-LoveBabbar

Questions by Love Babbar:

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DSA Cracker Sheet

Arrays

Topic: Problem Solutions
Array Reverse the array
Array Find the maximum and minimum element in an array <->
Array Find the "Kth" max and min element of an array <->
Array Given an array which consists of only 0, 1 and 2. Sort the array without using any sorting algo <->
Array Move all the negative elements to one side of the array <->
Array Find the Union and Intersection of the two sorted arrays. <->
Array Write a program to cyclically rotate an array by one. <->
Array find Largest sum contiguous Subarray [V. IMP] <->
Array Minimise the maximum difference between heights [V.IMP] <->
Array Minimum no. of Jumps to reach end of an array <->
Array find duplicate in an array of N+1 Integers <->
Array Merge 2 sorted arrays without using Extra space. <->
Array Kadane's Algo [V.V.V.V.V IMP] <->
Array Merge Intervals <->
Array Next Permutation <->
Array Count Inversion <->
Array Best time to buy and Sell stock <->
Array find all pairs on integer array whose sum is equal to given number <->
Array find common elements In 3 sorted arrays <->
Array Rearrange the array in alternating positive and negative items with O(1) extra space <->
Array Find if there is any subarray with sum equal to 0 <->
Array Find factorial of a large number <->
Array find maximum product subarray <->
Array Find longest coinsecutive subsequence <->
Array Given an array of size n and a number k, fin all elements that appear more than " n/k " times. <->
Array Maximum profit by buying and selling a share atmost twice <->
Array Find whether an array is a subset of another array <->
Array Find the triplet that sum to a given value <->
Array Trapping Rain water problem <->
Array Chocolate Distribution problem <->
Array Smallest Subarray with sum greater than a given value <->
Array Three way partitioning of an array around a given value <->
Array Minimum swaps required bring elements less equal K together <->
Array Minimum no. of operations required to make an array palindrome <->
Array Median of 2 sorted arrays of equal size <->
Array Median of 2 sorted arrays of different size <->

Matrix

Topic: Problem Solutions
Matrix Spiral traversal on a Matrix <->
Matrix Search an element in a matriix <->
Matrix Find median in a row wise sorted matrix <->
Matrix Find row with maximum no. of 1's <->
Matrix Print elements in sorted order using row-column wise sorted matrix <->
Matrix Maximum size rectangle <->
Matrix Find a specific pair in matrix <->
Matrix Rotate matrix by 90 degrees <->
Matrix Kth smallest element in a row-cpumn wise sorted matrix <->
Matrix Common elements in all rows of a given matrix <->

Strings

Topic: Problem Solutions
String Reverse a String <->
String Check whether a String is Palindrome or not <->
String Find Duplicate characters in a string <->
String Why strings are immutable in Java? <->
String Write a Code to check whether one string is a rotation of another <->
String Write a Program to check whether a string is a valid shuffle of two strings or not <->
String Count and Say problem <->
String Write a program to find the longest Palindrome in a string.[ Longest palindromic Substring] <->
String Find Longest Recurring Subsequence in String <->
String Print all Subsequences of a string. <->
String Print all the permutations of the given string <->
String Split the Binary string into two substring with equal 0’s and 1’s <->
String Word Wrap Problem [VERY IMP]. <->
String EDIT Distance [Very Imp] <->
String Find next greater number with same set of digits. [Very Very IMP] <->
String Balanced Parenthesis problem.[Imp] <->
String Word break Problem[ Very Imp] <->
String Rabin Karp Algo <->
String KMP Algo <->
String Convert a Sentence into its equivalent mobile numeric keypad sequence. <->
String Minimum number of bracket reversals needed to make an expression balanced. <->
String Count All Palindromic Subsequence in a given String. <->
String Count of number of given string in 2D character array <->
String Search a Word in a 2D Grid of characters. <->
String Boyer Moore Algorithm for Pattern Searching. <->
String Converting Roman Numerals to Decimal <->
String Longest Common Prefix <->
String Number of flips to make binary string alternate <->
String Find the first repeated word in string. <->
String Minimum number of swaps for bracket balancing. <->
String Find the longest common subsequence between two strings. <->
String Program to generate all possible valid IP addresses from given string. <->
String Write a program tofind the smallest window that contains all characters of string itself. <->
String Rearrange characters in a string such that no two adjacent are same <->
String Minimum characters to be added at front to make string palindrome <->
String Given a sequence of words, print all anagrams together <->
String Find the smallest window in a string containing all characters of another string <->
String Recursively remove all adjacent duplicates <->
String String matching where one string contains wildcard characters <->
String Function to find Number of customers who could not get a computer <->
String Transform One String to Another using Minimum Number of Given Operation <->
String Check if two given strings are isomorphic to each other <->
String Recursively print all sentences that can be formed from list of word lists <->

Searching and Sorting

Topic: Problem Solutions
Searching & Sorting Find first and last positions of an element in a sorted array <->
Searching & Sorting Find a Fixed Point (Value equal to index) in a given array <->
Searching & Sorting Search in a rotated sorted array <->
Searching & Sorting square root of an integer <->
Searching & Sorting Maximum and minimum of an array using minimum number of comparisons <->
Searching & Sorting Optimum location of point to minimize total distance <->
Searching & Sorting Find the repeating and the missing <->
Searching & Sorting find majority element <->
Searching & Sorting Searching in an array where adjacent differ by at most k <->
Searching & Sorting find a pair with a given difference <->
Searching & Sorting find four elements that sum to a given value <->
Searching & Sorting maximum sum such that no 2 elements are adjacent <->
Searching & Sorting Count triplet with sum smaller than a given value <->
Searching & Sorting merge 2 sorted arrays <->
Searching & Sorting print all subarrays with 0 sum <->
Searching & Sorting Product array Puzzle <->
Searching & Sorting Sort array according to count of set bits <->
Searching & Sorting minimum no. of swaps required to sort the array <->
Searching & Sorting Bishu and Soldiers <->
Searching & Sorting Rasta and Kheshtak <->
Searching & Sorting Kth smallest number again <->
Searching & Sorting Find pivot element in a sorted array <->
Searching & Sorting K-th Element of Two Sorted Arrays <->
Searching & Sorting Aggressive cows <->
Searching & Sorting Book Allocation Problem <->
Searching & Sorting EKOSPOJ: <->
Searching & Sorting Job Scheduling Algo <->
Searching & Sorting Missing Number in AP <->
Searching & Sorting Smallest number with atleastn trailing zeroes infactorial <->
Searching & Sorting Painters Partition Problem: <->
Searching & Sorting ROTI-Prata SPOJ <->
Searching & Sorting DoubleHelix SPOJ <->
Searching & Sorting Subset Sums <->
Searching & Sorting Findthe inversion count <->
Searching & Sorting Implement Merge-sort in-place <->
Searching & Sorting Partitioning and Sorting Arrays with Many Repeated Entries <->

Linked Lists

Topic: Problem Solutions
LinkedList Write a Program to reverse the Linked List. (Both Iterative and recursive) <->
LinkedList Reverse a Linked List in group of Given Size. [Very Imp] <->
LinkedList Write a program to Detect loop in a linked list. <->
LinkedList Write a program to Delete loop in a linked list. <->
LinkedList Find the starting point of the loop. <->
LinkedList Remove Duplicates in a sorted Linked List. <->
LinkedList Remove Duplicates in a Un-sorted Linked List. <->
LinkedList Write a Program to Move the last element to Front in a Linked List. <->
LinkedList Add “1” to a number represented as a Linked List. <->
LinkedList Add two numbers represented by linked lists. <->
LinkedList Intersection of two Sorted Linked List. <->
LinkedList Intersection Point of two Linked Lists. <->
LinkedList Merge Sort For Linked lists.[Very Important] <->
LinkedList Quicksort for Linked Lists.[Very Important] <->
LinkedList Find the middle Element of a linked list. <->
LinkedList Check if a linked list is a circular linked list. <->
LinkedList Split a Circular linked list into two halves. <->
LinkedList Write a Program to check whether the Singly Linked list is a palindrome or not. <->
LinkedList Deletion from a Circular Linked List. <->
LinkedList Reverse a Doubly Linked list. <->
LinkedList Find pairs with a given sum in a DLL. <->
LinkedList Count triplets in a sorted DLL whose sum is equal to given value “X”. <->
LinkedList Sort a “k”sorted Doubly Linked list.[Very IMP] <->
LinkedList Rotate DoublyLinked list by N nodes. <->
LinkedList Rotate a Doubly Linked list in group of Given Size.[Very IMP] <->
LinkedList Can we reverse a linked list in less than O(n) ? <->
LinkedList Why Quicksort is preferred for. Arrays and Merge Sort for LinkedLists ? <->
LinkedList Flatten a Linked List <->
LinkedList Sort a LL of 0's, 1's and 2's <->
LinkedList Clone a linked list with next and random pointer <->
LinkedList Merge K sorted Linked list <->
LinkedList Multiply 2 no. represented by LL <->
LinkedList Delete nodes which have a greater value on right side <->
LinkedList Segregate even and odd nodes in a Linked List <->
LinkedList Program for n’th node from the end of a Linked List <->
LinkedList Find the first non-repeating character from a stream of characters <->

Binary Trees

Topic: Problem Solutions
Binary Trees level order traversal <->
Binary Trees Reverse Level Order traversal <->
Binary Trees Height of a tree <->
Binary Trees Diameter of a tree <->
Binary Trees Mirror of a tree <->
Binary Trees Inorder Traversal of a tree both using recursion and Iteration <->
Binary Trees Preorder Traversal of a tree both using recursion and Iteration <->
Binary Trees Postorder Traversal of a tree both using recursion and Iteration <->
Binary Trees Left View of a tree <->
Binary Trees Right View of Tree <->
Binary Trees Top View of a tree <->
Binary Trees Bottom View of a tree <->
Binary Trees Zig-Zag traversal of a binary tree <->
Binary Trees Check if a tree is balanced or not <->
Binary Trees Diagnol Traversal of a Binary tree <->
Binary Trees Boundary traversal of a Binary tree <->
Binary Trees Construct Binary Tree from String with Bracket Representation <->
Binary Trees Convert Binary tree into Doubly Linked List <->
Binary Trees Convert Binary tree into Sum tree <->
Binary Trees Construct Binary tree from Inorder and preorder traversal <->
Binary Trees Find minimum swaps required to convert a Binary tree into BST <->
Binary Trees Check if Binary tree is Sum tree or not <->
Binary Trees Check if all leaf nodes are at same level or not <->
Binary Trees Check if a Binary Tree contains duplicate subtrees of size 2 or more [ IMP ] <->
Binary Trees Check if 2 trees are mirror or not <->
Binary Trees Sum of Nodes on the Longest path from root to leaf node <->
Binary Trees Check if given graph is tree or not. [ IMP ] <->
Binary Trees Find Largest subtree sum in a tree <->
Binary Trees Maximum Sum of nodes in Binary tree such that no two are adjacent <->
Binary Trees Print all "K" Sum paths in a Binary tree <->
Binary Trees Find LCA in a Binary tree <->
Binary Trees Find distance between 2 nodes in a Binary tree <->
Binary Trees Kth Ancestor of node in a Binary tree <->
Binary Trees Find all Duplicate subtrees in a Binary tree [ IMP ] <->
Binary Trees Tree Isomorphism Problem <->

Binary Search Trees

Topic: Problem Solutions
Binary Search Trees Fina a value in a BST <->
Binary Search Trees Deletion of a node in a BST <->
Binary Search Trees Find min and max value in a BST <->
Binary Search Trees Find inorder successor and inorder predecessor in a BST <->
Binary Search Trees Check if a tree is a BST or not <->
Binary Search Trees Populate Inorder successor of all nodes <->
Binary Search Trees Find LCA of 2 nodes in a BST <->
Binary Search Trees Construct BST from preorder traversal <->
Binary Search Trees Convert Binary tree into BST <->
Binary Search Trees Convert a normal BST into a Balanced BST <->
Binary Search Trees Merge two BST [ V.V.V>IMP ] <->
Binary Search Trees Find Kth largest element in a BST <->
Binary Search Trees Find Kth smallest element in a BST <->
Binary Search Trees Count pairs from 2 BST whose sum is equal to given value "X" <->
Binary Search Trees Find the median of BST in O(n) time and O(1) space <->
Binary Search Trees Count BST ndoes that lie in a given range <->
Binary Search Trees Replace every element with the least greater element on its right <->
Binary Search Trees Given "n" appointments, find the conflicting appointments <->
Binary Search Trees Check preorder is valid or not <->
Binary Search Trees Check whether BST contains Dead end <->
Binary Search Trees Largest BST in a Binary Tree [ V.V.V.V.V IMP ] <->
Binary Search Trees Flatten BST to sorted list <->

Greedy

Topic: Problem Solutions
Greedy Activity Selection Problem <->
Greedy Job SequencingProblem <->
Greedy Huffman Coding <->
Greedy Water Connection Problem <->
Greedy Fractional Knapsack Problem <->
Greedy Greedy Algorithm to find Minimum number of Coins <->
Greedy Maximum trains for which stoppage can be provided <->
Greedy Minimum Platforms Problem <->
Greedy Buy Maximum Stocks if i stocks can be bought on i-th day <->
Greedy Find the minimum and maximum amount to buy all N candies <->
Greedy Minimize Cash Flow among a given set of friends who have borrowed money from each other <->
Greedy Minimum Cost to cut a board into squares <->
Greedy Check if it is possible to survive on Island <->
Greedy Find maximum meetings in one room <->
Greedy Maximum product subset of an array <->
Greedy Maximize array sum after K negations <->
Greedy Maximize the sum of arr[i]*i <->
Greedy Maximum sum of absolute difference of an array <->
Greedy Maximize sum of consecutive differences in a circular array <->
Greedy Minimum sum of absolute difference of pairs of two arrays <->
Greedy Program for Shortest Job First (or SJF) CPU Scheduling <->
Greedy Program for Least Recently Used (LRU) Page Replacement algorithm <->
Greedy Smallest subset with sum greater than all other elements <->
Greedy Chocolate Distribution Problem <->
Greedy DEFKIN -Defense of a Kingdom <->
Greedy DIEHARD -DIE HARD <->
Greedy GERGOVIA -Wine trading in Gergovia <->
Greedy Picking Up Chicks <->
Greedy CHOCOLA –Chocolate <->
Greedy ARRANGE -Arranging Amplifiers <->
Greedy K Centers Problem <->
Greedy Minimum Cost of ropes <->
Greedy Find smallest number with given number of digits and sum of digits <->
Greedy Rearrange characters in a string such that no two adjacent are same <->
Greedy Find maximum sum possible equal sum of three stacks <->

Backtracking

Topic: Problem Solutions
BackTracking Rat in a maze Problem <->
BackTracking Printing all solutions in N-Queen Problem <->
BackTracking Word Break Problem using Backtracking <->
BackTracking Remove Invalid Parentheses <->
BackTracking Sudoku Solver <->
BackTracking m Coloring Problem <->
BackTracking Print all palindromic partitions of a string <->
BackTracking Subset Sum Problem <->
BackTracking The Knight’s tour problem <->
BackTracking Tug of War <->
BackTracking Find shortest safe route in a path with landmines <->
BackTracking Combinational Sum <->
BackTracking Find Maximum number possible by doing at-most K swaps <->
BackTracking Print all permutations of a string <->
BackTracking Find if there is a path of more than k length from a source <->
BackTracking Longest Possible Route in a Matrix with Hurdles <->
BackTracking Print all possible paths from top left to bottom right of a mXn matrix <->
BackTracking Partition of a set intoK subsets with equal sum <->
BackTracking Find the K-th Permutation Sequence of first N natural numbers <->

Stacks and Queues

Topic: Problem Solutions
Stacks & Queues Implement Stack from Scratch <->
Stacks & Queues Implement Queue from Scratch <->
Stacks & Queues Implement 2 stack in an array <->
Stacks & Queues find the middle element of a stack <->
Stacks & Queues Implement "N" stacks in an Array <->
Stacks & Queues Check the expression has valid or Balanced parenthesis or not. <->
Stacks & Queues Reverse a String using Stack <->
Stacks & Queues Design a Stack that supports getMin() in O(1) time and O(1) extra space. <->
Stacks & Queues Find the next Greater element <->
Stacks & Queues The celebrity Problem <->
Stacks & Queues Arithmetic Expression evaluation <->
Stacks & Queues Evaluation of Postfix expression <->
Stacks & Queues Implement a method to insert an element at its bottom without using any other data structure. <->
Stacks & Queues Reverse a stack using recursion <->
Stacks & Queues Sort a Stack using recursion <->
Stacks & Queues Merge Overlapping Intervals <->
Stacks & Queues Largest rectangular Area in Histogram <->
Stacks & Queues Length of the Longest Valid Substring <->
Stacks & Queues Expression contains redundant bracket or not <->
Stacks & Queues Implement Stack using Queue <->
Stacks & Queues Implement Stack using Deque <->
Stacks & Queues Stack Permutations (Check if an array is stack permutation of other) <->
Stacks & Queues Implement Queue using Stack <->
Stacks & Queues Implement "n" queue in an array <->
Stacks & Queues Implement a Circular queue <->
Stacks & Queues LRU Cache Implementationa <->
Stacks & Queues Reverse a Queue using recursion <->
Stacks & Queues Reverse the first “K” elements of a queue <->
Stacks & Queues Interleave the first half of the queue with second half <->
Stacks & Queues Find the first circular tour that visits all Petrol Pumps <->
Stacks & Queues Minimum time required to rot all oranges <->
Stacks & Queues Distance of nearest cell having 1 in a binary matrix <->
Stacks & Queues First negative integer in every window of size “k” <->
Stacks & Queues Check if all levels of two trees are anagrams or not. <->
Stacks & Queues Sum of minimum and maximum elements of all subarrays of size “k”. <->
Stacks & Queues Minimum sum of squares of character counts in a given string after removing “k” characters. <->
Stacks & Queues Queue based approach or first non-repeating character in a stream. <->
Stacks & Queues Next Smaller Element <->

Heap

Topic: Problem Solutions
Heap Implement a Maxheap/MinHeap using arrays and recursion. <->
Heap Sort an Array using heap. (HeapSort) <->
Heap Maximum of all subarrays of size k. <->
Heap “k” largest element in an array <->
Heap Kth smallest and largest element in an unsorted array <->
Heap Merge “K” sorted arrays. [ IMP ] <->
Heap Merge 2 Binary Max Heaps <->
Heap Kth largest sum continuous subarrays <->
Heap Leetcode- reorganize strings <->
Heap Merge “K” Sorted Linked Lists [V.IMP] <->
Heap Smallest range in “K” Lists <->
Heap Median in a stream of Integers <->
Heap Check if a Binary Tree is Heap <->
Heap Connect “n” ropes with minimum cost <->
Heap Convert BST to Min Heap <->
Heap Convert min heap to max heap <->
Heap Rearrange characters in a string such that no two adjacent are same. <->
Heap Minimum sum of two numbers formed from digits of an array <->

Graphs

Topic: Problem Solutions
Graph Create a Graph, print it <->
Graph Implement BFS algorithm <->
Graph Implement DFS Algo <->
Graph Detect Cycle in Directed Graph using BFS/DFS Algo <->
Graph Detect Cycle in UnDirected Graph using BFS/DFS Algo <->
Graph Search in a Maze <->
Graph Minimum Step by Knight <->
Graph flood fill algo <->
Graph Clone a graph <->
Graph Making wired Connections <->
Graph word Ladder <->
Graph Dijkstra algo <->
Graph Implement Topological Sort <->
Graph Minimum time taken by each job to be completed given by a Directed Acyclic Graph <->
Graph Find whether it is possible to finish all tasks or not from given dependencies <->
Graph Find the no. of Isalnds <->
Graph Given a sorted Dictionary of an Alien Language, find order of characters <->
Graph Implement Kruksal’sAlgorithm <->
Graph Implement Prim’s Algorithm <->
Graph Total no. of Spanning tree in a graph <->
Graph Implement Bellman Ford Algorithm <->
Graph Implement Floyd warshallAlgorithm <->
Graph Travelling Salesman Problem <->
Graph Graph ColouringProblem <->
Graph Snake and Ladders Problem <->
Graph Find bridge in a graph <->
Graph Count Strongly connected Components(Kosaraju Algo) <->
Graph Check whether a graph is Bipartite or Not <->
Graph Detect Negative cycle in a graph <->
Graph Longest path in a Directed Acyclic Graph <->
Graph Journey to the Moon <->
Graph Cheapest Flights Within K Stops <->
Graph Oliver and the Game <->
Graph Water Jug problem using BFS <->
Graph Water Jug problem using BFS <->
Graph Find if there is a path of more thank length from a source <->
Graph M-ColouringProblem <->
Graph Minimum edges to reverse o make path from source to destination <->
Graph Paths to travel each nodes using each edge(Seven Bridges) <->
Graph Vertex Cover Problem <->
Graph Chinese Postman or Route Inspection <->
Graph Number of Triangles in a Directed and Undirected Graph <->
Graph Minimise the cashflow among a given set of friends who have borrowed money from each other <->
Graph Two Clique Problem <->

Trie

Topic: Problem Solutions
Trie Construct a trie from scratch <->
Trie Find shortest unique prefix for every word in a given list <->
Trie Word Break Problem | (Trie solution) <->
Trie Given a sequence of words, print all anagrams together <->
Trie Implement a Phone Directory <->
Trie Print unique rows in a given boolean matrix <->

Dynamic Programming

Topic: Problem Solutions
Dynamic Programming Coin ChangeProblem <->
Dynamic Programming Knapsack Problem <->
Dynamic Programming Binomial CoefficientProblem <->
Dynamic Programming Permutation CoefficientProblem <->
Dynamic Programming Program for nth Catalan Number <->
Dynamic Programming Matrix Chain Multiplication <->
Dynamic Programming Edit Distance <->
Dynamic Programming Subset Sum Problem <->
Dynamic Programming Friends Pairing Problem <->
Dynamic Programming Gold Mine Problem <->
Dynamic Programming Assembly Line SchedulingProblem <->
Dynamic Programming Painting the Fenceproblem <->
Dynamic Programming Maximize The Cut Segments <->
Dynamic Programming Longest Common Subsequence <->
Dynamic Programming Longest Repeated Subsequence <->
Dynamic Programming Longest Increasing Subsequence <->
Dynamic Programming Space Optimized Solution of LCS <->
Dynamic Programming LCS (Longest Common Subsequence) of three strings <->
Dynamic Programming Maximum Sum Increasing Subsequence <->
Dynamic Programming Count all subsequences having product less than K <->
Dynamic Programming Longest subsequence such that difference between adjacent is one <->
Dynamic Programming Maximum subsequence sum such that no three are consecutive <->
Dynamic Programming Egg Dropping Problem <->
Dynamic Programming Maximum Length Chain of Pairs <->
Dynamic Programming Maximum size square sub-matrix with all 1s <->
Dynamic Programming Maximum sum of pairs with specific difference <->
Dynamic Programming Min Cost PathProblem <->
Dynamic Programming Maximum difference of zeros and ones in binary string <->
Dynamic Programming Minimum number of jumps to reach end <->
Dynamic Programming Minimum cost to fill given weight in a bag <->
Dynamic Programming Minimum removals from array to make max –min <= K <->
Dynamic Programming Longest Common Substring <->
Dynamic Programming Count number of ways to reacha given score in a game <->
Dynamic Programming Count Balanced Binary Trees of Height h <->
Dynamic Programming LargestSum Contiguous Subarray [V>V>V>V IMP ] <->
Dynamic Programming Smallest sum contiguous subarray <->
Dynamic Programming Unbounded Knapsack (Repetition of items allowed) <->
Dynamic Programming Word Break Problem <->
Dynamic Programming Largest Independent Set Problem <->
Dynamic Programming Partition problem <->
Dynamic Programming Longest Palindromic Subsequence <->
Dynamic Programming Count All Palindromic Subsequence in a given String <->
Dynamic Programming Longest Palindromic Substring <->
Dynamic Programming Longest alternating subsequence <->
Dynamic Programming Weighted Job Scheduling <->
Dynamic Programming Coin game winner where every player has three choices <->
Dynamic Programming Count Derangements (Permutation such that no element appears in its original position) [ IMPORTANT ] <->
Dynamic Programming Maximum profit by buying and selling a share at most twice [ IMP ] <->
Dynamic Programming Optimal Strategy for a Game <->
Dynamic Programming Optimal Binary Search Tree <->
Dynamic Programming Palindrome PartitioningProblem <->
Dynamic Programming Word Wrap Problem <->
Dynamic Programming Mobile Numeric Keypad Problem [ IMP ] <->
Dynamic Programming Boolean Parenthesization Problem <->
Dynamic Programming Largest rectangular sub-matrix whose sum is 0 <->
Dynamic Programming Largest area rectangular sub-matrix with equal number of 1’s and 0’s [ IMP ] <->
Dynamic Programming Maximum sum rectangle in a 2D matrix <->
Dynamic Programming Maximum profit by buying and selling a share at most k times <->
Dynamic Programming Find if a string is interleaved of two other strings <->
Dynamic Programming Maximum Length of Pair Chain <->

Bit Manipulation

Topic: Problem Solutions
Bit Manipulation Count set bits in an integer <->
Bit Manipulation Find the two non-repeating elements in an array of repeating elements <->
Bit Manipulation Count number of bits to be flipped to convert A to B <->
Bit Manipulation Count total set bits in all numbers from 1 to n <->
Bit Manipulation Program to find whether a no is power of two <->
Bit Manipulation Find position of the only set bit <->
Bit Manipulation Copy set bits in a range <->
Bit Manipulation Divide two integers without using multiplication, division and mod operator <->
Bit Manipulation Calculate square of a number without using *, / and pow() <->
Bit Manipulation Power Set <->