elitecoder
STREAK
00/1467
days
Longest streak/Global longest streak
Language Used
C++, Python
Coding Score
870
Problem Solved
328
Contest Rating
__
28 points
Contributor
28 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
1 submissions in current year
SCHOOL (0)
BASIC (51)
EASY (122)
MEDIUM (134)
HARD (21)
- Sort a linked list of 0s, 1s and 2s
- Detect Loop in linked list
- Count BST nodes that lie in a given range
- Merge Sort
- Quick Sort
- Binary Tree from Inorder and Postorder
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Heap Sort
- Merge two sorted linked lists
- Delete a node from BST
- Directed Graph Cycle
- Undirected Graph Cycle
- Two Stacks in an Array
- The Celebrity Problem
- Topological sort
- Vertical Tree Traversal
- Merge K sorted linked lists
- Find the number of islands
- Gas Station
- Remove loop in Linked List
- Dijkstra Algorithm
- Minimum Spanning Tree
- Multiply two strings
- Maximum Difference
- Palindrome Linked List
- Strongly Connected
- Bipartite Graph
- Max sum subarray by removing at most one element
- Closest in BST
- Count distinct elements in every window
- Merge k Sorted Arrays
- Top View of Binary Tree
- Find Common Nodes in two BSTs
- Peak element
- Construct Tree from Inorder & Preorder
- Children Sum in a Binary Tree
- Coin Change - Minimum number of coins
- Pairwise swap of nodes in Linked List
- Rabin Karp - Pattern Searching
- Floor in BST
- Ceil in BST
- Pair Sum in BST
- Count set bits
- Reverse array in groups
- Smallest Positive Missing
- Power Of Numbers
- Maximum occured integer
- Wave Array
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Maximum Index
- Stock buy and sell
- Rotate Array
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Indexes of Subarray Sum
- Triplet Sum in Array
- Boolean Matrix
- Spirally traversing a matrix
- Search in a sorted Matrix
- Subarray with 0 sum
- Subarrays with equal 1s and 0s
- Sort Elements by Decreasing Frequency
- Longest Consecutive Subsequence
- Strings Rotations of Each Other
- Postfix Evaluation
- Stock span problem
- Next Greater Element
- K Sized Subarray Maximum
- Kth largest element
- Kth smallest element
- Nearly sorted
- Activity Selection
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Largest number in K swaps
- Combination Sum
- Stickler Thief
- Longest Increasing Subsequence
- Longest Common Subsequence
- Tie Breaker
- The Pendulum Swings
- Lexicographical Rank Of String
- Minimum Vertical Sum
- Subarray sum
- Minimum Step Destination
- Sort according to an Array
- Allocate Minimum Pages
- Zero Sum Subarrays
- Shortest Common Supersequence
- Nth Catalan Number
- Longest Subarray Of Evens And Odds
- Maximize The Cut Segments
- Print Anagrams Together
- Overlapping Intervals
- Word Break
- 4 Sum - All Quadruples
- Maximum Water Between Two Buildings
- Sort 0s, 1s and 2s
- Pascal Triangle
- Count Occurences of Anagrams
- Pythagorean Triplet
- Search in Rotated Sorted Array
- Form the Largest Number
- Maximum Product Subarray
- Longest subarray with sum divisible by K
- Longest Subarray with Sum K
- Factorials of large numbers
- Length of the longest substring
- Longest Palindrome in a String
- K-th element of two Arrays
- Number of pairs
- Permutations of a String
- Subsequence matching
- Pallindrome Patterns
- Largest prime factor
- Max Sum Increasing Subsequence
- Sieve of Eratosthenes
- Coin Change (Minimum Coins)
- Perfect Sum Problem
- nCr
- Longest Bitonic subsequence
- Return two prime numbers
- Find Prime numbers in a range
- Rank The Permutations
- Longest Repeating Subsequence
- Segregate even and odd nodes in a Linked List
- Negative weight cycle
- Police and Thieves
- Continuous Series
- The Manipulator
- Triangle and Square
- M and N
- Continuous Series
- Valid String
- Reverse a linked list
- Remove duplicates from an unsorted linked list
- Inorder Traversal
- Check for BST
- Right View of Binary Tree
- Balanced Tree Check
- Kth from End of Linked List
- Middle of a Linked List
- Left View of Binary Tree
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Stack using two queues
- Level Order in spiral form
- DFS of Graph
- Implement stack using array
- Insert a node in a BST
- BFS of graph
- Identical Trees
- Square Root
- Binary Search
- Level Order Line by Line
- Binary Tree to BST
- Array Duplicates
- Special Stack
- Level order traversal
- Symmetric Tree
- Find length of Loop
- Reverse first K of a Queue
- Find the Frequency
- Back to Front
- Get min at pop
- Deque Implementations
- Min Heap implementation
- Multiset Operations
- Multimap Operations
- Max and Second Max
- Fibonacci Numbers - Top Down DP
- Fibonacci Numbers - Bottom Up DP
- Coin Change - Number of ways
- Inorder traversal of a BST
- Levelorder traversal of a BST
- First Set Bit
- Rightmost different bit
- Check K-th Bit
- GP Term
- Primality Test
- Mean And Median of Array
- Modular Inverse
- Power of 2
- Minimum adjacent difference in a circular array
- Frequencies in a Limited Array
- Equilibrium Point
- Array Leaders
- Count 1's in binary array
- Floor in a Sorted Array
- Minimum Number in a sorted rotated array
- Print adjacency list
- Print Matrix in snake Pattern
- Transpose of Matrix
- Matrix Boundary Traversal
- Naive Pattern Search
- Anagram
- Winner of an election
- Reverse Words
- Non Repeating Character
- Removing consecutive duplicates
- Removing consecutive duplicates - 2
- Parenthesis Checker
- Generate Binary Numbers
- N meetings in one room
- Largest number with given sum
- Count Digits in a Number
- Power Set Using Recursion
- Corresponding pair
- Elected candidate
- Vector min_element
- Vector Accumulate
- Find element in Set using Count
- Rotate vector by K places
- Check if Arrays are Permutations
- Pattern searching
- Odd The Even Out
- Greater Permutations
- Are They Anagrams?
- Longest Consecutive 1s
- Merge Sorted Arrays Using Minheap
- Rotate Deque By K
- Elements Less Than K
- Print Different Characters In Sorted Manner
- Unique Substrings
- Union of Arrays with Duplicates
- Positive Negative Pair
- Sum Unique Elements
- Missing in Array
- Intersection of Arrays with Distinct
- Rob The Houses
- Missing And Repeating
- Find Kth Rotation
- Adding Ones
- Common in 3 Sorted Arrays
- Sorted and Rotated Minimum
- Move All Zeroes to End
- Count the triplets
- Two Sum - Pair with Given Sum
- First Repeated Character
- Maximum number of characters between any two same character
- Four Elements
- Padovan Sequence
- The Nth Fibonnaci
- Nth Fibonacci Number
- Prime Number
- Shortest path from 1 to n
- Perfect Numbers
- Number Game
- Magic numbers
- Least Prime Factor
- Reorder List
- Binary Tree to DLL
- Clone List with Next and Random
- LRU Cache
- Merge Sort on Doubly Linked List
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Trapping Rain Water
- Max Circular Subarray Sum
- Pattern Search
- Histogram Max Rectangular Area
- Solve the Sudoku
- First Greater Height
- Minimum Cost Path
- Median of Two sorted arrays
- Merge Without Extra Space
- The Painter's Partition Problem-II
- Ugly Numbers
- Edit Distance
- Matrix Chain Multiplication
- N-Queen Problem
- Count Leaves in Binary Tree
- Postorder Traversal
- Preorder Traversal
- First Occurence
- Search a node in BST
- Minimum element in BST
- Insert in Middle of Linked List
- Sort and Reverse Vector
- Front to Back
- Queue Push & Pop
- Set Operations
- Map Operations
- Strongest Neighbour
- Array insert at index
- Array insert at end
- Absolute Value
- Bit Difference
- Number is sparse or not
- Print 1 To N Without Loop
- Array Search
- Sorted Array Search
- Left Index
- Binary String
- Pairing elements
- Make pair
- Vector insertion
- Distinct Sorted
- Sorted Frequency
- Vector max_element
- Find element in Set using find
- Vector fill
- upper and lower bounds of an element
- Heapify the vector
- Permutations of string
- Remove from vector
- Sort and reverse
- Set bits in N
- Rotation
- Vector Erase and Clear
- Deque Traversal
- Deque deletion
- Vector Shrink To Fit
- Vector Sum
- Anagram Palindrome
- Sort Array II
- GCD of Array
- LCM And GCD
- Longest Increasing Subarray
- Factorial
- Count Squares
- Make a Distinct Digit Array
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