| Sliding Window Maximum LeetCode Solution |
| Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution |
| Minimum swaps to make sequences increasing |
| Sum of nearest smaller and greater number |
| Rearrange Array such that arr[i] >= arr[j] if i is even and arr[i] <= arr[j] if i is odd and j < i |
| Contiguous Array |
| Maximum Length of Repeated Subarray |
| Count pair with Given Sum |
| Maximum difference between frequency of two elements such that element having greater frequency is also greater |
| All Unique Triplets that Sum up to a Given Value |
| Longest Subarray Having Count of 1s One More than Count of 0s |
| Maximum Array from Two given Arrays Keeping Order Same |
| Count Subarrays with Same Even and Odd Elements |
| Rearrange an Array Such that arr[i] is equal to i |
| Segregate 0s and 1s in an Array |
| Maximum Number of Chocolates to be Distributed Equally Among k Students |
| Maximum Consecutive Numbers Present in an Array |
| Move all negative elements to one side of array |
| Queries for Number of Distinct Elements in a Subarray |
| Queries on Probability of Even or Odd Number in given Ranges |
| Total Numbers With no Repeated Digits in a Range |
| Range Minimum Query (Square Root Decomposition and Sparse Table) |
| Range Sum Query using Sparse Table |
| Count and Toggle Queries on a Binary Array |
| Queries for Decimal Values of Subarrays of a Binary Array |
| Maximize Elements Using Another Array |
| Find whether an array is subset of another array |
| Print all triplets in sorted array that form AP |
| Find number of pairs in an array such that their XOR is 0 |
| Given an Array of Pairs Find all Symmetric Pairs in it |
| Find all triplets with zero sum |
| Generate all possible sorted arrays from alternate elements of two given sorted arrays |
| Array Queries for multiply replacements and product |
| Check in binary array the number represented by a subarray is odd or even |
| Queries for counts of array elements with values in given range |
| Products of ranges in an array |
| Palindrome Permutation |
| Sort an array according to the order defined by another array |
| Shuffle 2n integers as a1-b1-a2-b2-a3-b3-..bn without using extra space |
| Distinct adjacent elements in an array |
| Construction of Longest Increasing Subsequence (N log N) |
| Maximize sum of consecutive differences in a circular array |
| Three way partitioning of an array around a given range |
| Check if X can give change to every person in the Queue |
| Rearrange an array such that ‘arr[j]’ becomes ‘i’ if ‘arr[i]’ is ‘j’ |
| Maximum length subsequence with difference between adjacent elements as either 0 or 1 |
| Replace two consecutive equal values with one greater |
| Find a sorted subsequence of size 3 in linear time |
| Maximum Product Subarray |
| Convert array into Zig-Zag fashion |
| Rearrange array such that even index elements are smaller and odd index elements are greater |
| Segregate even and odd numbers |
| Find Minimum In Rotated Sorted Array |
| Move all negative elements to end in order with extra space allowed |
| Rearrange array such that even positioned are greater than odd |
| Double the first element and move zero to end |
| Remove duplicates from sorted array |
| Product of array except self |
| First missing positive |
| Find the minimum distance between two numbers |
| Count pairs from two sorted arrays whose sum is equal to a given value x |
| Find the subarray with least average |
| Find the smallest positive integer value that cannot be represented as sum of any subset of a given array |
| Find minimum number of merge operations to make an array palindrome |
| Minimize the maximum difference between the heights |
| Find maximum average subarray of k length |
| Find minimum difference between any two elements |
| Count minimum steps to get the given desired array |
| Dividing Array into Pairs With Sum Divisible by K |
| Count Distinct Elements in Every Window of Size K |
| Count Subsets Having Distinct Even Numbers |
| Find Three Element From Different Three Arrays Such That a + b + c = sum |
| Longest Increasing Subsequence |
| Count Pairs Whose Products Exist in Array |
| Merge Overlapping Intervals |
| Median of Two Sorted Arrays |
| Maximum Product Subarray |
| Find Maximum of Minimum for Every Window Size in a Given Array |
| Longest Common Prefix Using Word by Word Matching |
| Minimum Size Subarray Sum |
| Intersection of Two Arrays |
| Search an Element in Sorted Rotated Array |
| Maximum Product Subarray |
| 3 Sum |
| Find The Duplicate Number |
| Maximum Sum of 3 Non-Overlapping Subarrays |
| Minimum Index Sum of Two Lists |
| Split Array Into Consecutive Subsequences |
| Find the Duplicate Element |
| Find the Only Repetitive Element Between 1 to N-1 |
| Finding K closest element |
| Jump Game |
| Combination Sum |
| Search in Sorted Rotated Array |
| Maximum Subarray |
| Sliding Window Maximum |
| Delete And Earn |
| Length of Longest Fibonacci Subsequence |
| Merging Intervals |
| First Bad Version |
| Peak Index in a Mountain Array |
| 4Sum |
| Create Maximum Number |
| Degree of an array |
| Queue Reconstruction by Height |
| Search Insert Position |
| Find Peak Element |
| Valid Triangle Number |
| Power of Two |
| Maximum size subarray sum equals k |
| Next greater element |
| Guess The Word |
| Missing Number |
| Merge Sorted Array |
| Partition Equal Subset Sum |
| Last Stone Weight |
| Sort Colors |
| Rotate Array |
| Subarray Sum Equals k |
| Infix to Postfix |
| Circular Queue |
| Given a sorted array and a number x, find the pair in array whose sum is closest to x |
| Find the subarray whose sum is equal to a given number X |
| Arrange Even and Odd number such that Odd comes after Even |
| Minimum number of Merge Operations to make an Array Palindrome |
| Form Minimum Number from Given Sequence of D’s and I’s |
| Longest Span with same Sum in two Binary Arrays II |
| Find the Subarray of given length with Least Average |
| Find Zeros to be Flipped so that Number of Consecutive 1’s is Maximized |
| Merge K Sorted Arrays and Print Sorted Output |
| Find the Minimum Element in a Sorted and Rotated Array |
| Find the point where a monotonically increasing function becomes positive first time |
| Print all Possible Combinations of R Elements in a given Array of size N |
| Sort Elements by Frequency II |
| Stock Buy Sell to Maximize Profit |
| Merge Overlapping Intervals II |
| Maximum Subarray Sum using Divide and Conquer |
| Pancake Sorting Problem |
| Pancake Sorting |
| Arrange given Numbers to Form the Biggest Number II |
| Iterative Implementation of Quick Sort |
| Shuffle a given Array |
| Find the Row with Maximum Number of 1’s |
| Sorting a K Sorted Array |
| Maximum Product Subarray II |
| Largest Subarray with Equal Number of 0’s and 1’s |
| Find the two Numbers with Odd Occurrences in an Unsorted Array |
| Maximum Sum Increasing Subsequence |
| Implement Two Stacks in an Array |
| Number of Smaller Elements on Right Side |
| Increasing Subsequence of Length three with Maximum Product |
| Elements Appear more than N/K times in Array |
| Find the Peak Element from an Array |
| Rearrange Positive and Negative Numbers Alternatively in Array |
| Find the Maximum Repeating Number in Array |
| Tug of War |
| First Circular Tour to Visit all the Petrol Bunks |
| Count Possible Triangles |
| Maximum Circular Subarray Sum |
| Four Elements that Sum to Given |
| Maximum Length of Chain Pairs |
| Find Pair with Given Difference |
| Partition Problem |
| The Celebrity Problem |
| Find a Sorted Subsequence of size 3 |
| Subarray with Given Sum |
| Maximum Element in an Array which is Increasing and then Decreasing |
| Count Minimum Steps to Get the given Array |
| Find the Lost Element From a Duplicated Array |
| Rearrange given Array in Maximum Minimum Form |
| Subarray and Subsequence |
| Merge Two Sorted Arrays |
| Count of Triplets With Sum Less than Given Value |
| Reorder Array Using Given Indexes |
| Next Greater Element in an Array |
| Merging Two Sorted Arrays |
| Reorder an Array According to the Given Indexes |
| Find a Fixed Point in a Given Array |
| Find Element Using Binary Search in Sorted Array |
| Find Triplet in Array With a Given Sum |
| Check if the Elements of an Array are Consecutive |
| Find Duplicates in an Array in Most Efficient Way |
| Sort 0s 1s and 2s in an Array |
| Find Leaders in an Array |
| Smallest Positive Number Missing in an Unsorted Array |
| Find K Length Subarray of Maximum Average |
| Find Pythagorean Triplets from Array |
| Move All the Zeros to the End of the Given Array |
| Find Minimum Distance Between Two Numbers in an Array |
| Rotate Image by 90 degrees |
| Count Number of Occurrences in a Sorted Array |
| Maximum Sum of Non Consecutive Elements |
| Find Smallest Missing Number in a Sorted Array |
| First Repeating Element |
| Multiplication of Previous and Next |
| A Product Array Puzzle |
| Find All Pairs With a Given Difference |
| Find all Common Elements in Given Three Sorted Arrays |
| Find the first Repeating Number in a Given Array |
| Print All Distinct Elements of the Array |
| Maximum difference between two elements such as larger element comes after smaller |
| Majority Element |
| Find the First and Second Smallest Elements |
| Find the Number Occurring Odd Number of Times in an Array |
| Sort Elements by Frequency of Occurrences |
| Find the Missing Number |
| Find Nearest Greater and Smaller Element |
| Largest Sum Contiguous Subarray |
| Reverse an Array |
| Find a Triplet That Sum to a Given Value |
| Find elements pair from array whose sum equal to number |
