- Operating an array
- Implement Queue using Linked List
- Height of Binary Tree
- Implement Stack using Linked List
- Binary Search
- Count Leaves in Binary Tree
- Finding middle element in a linked list
- Inorder Traversal
- Minimum distance between two numbers
- Implement Atoi
- Add two fractions
- Implement strstr
- Factorial
- Prime Number
- LCM And GCD
- GCD of Array
- Power of 2
- Series GP
- Pythagorean Triplet
- Print the Kth Digit
- Majority Element
- Sieve of Eratosthenes
- Shortest path from 1 to n
- Dice throw
- Rotate Array
- Permutations of a given string
- Missing number in array
- Number of paths
- Count total set bits
- Number is sparse or not
- Bit Difference
- Convert array into Zig-Zag fashion
- Pairs of prime number
- Sum of all prime numbers between 1 and N.
- Angle between hour and minute hand
- Check if given four points form a square
- Reverse array in groups
- Set Bits
- Longest Consecutive 1's
- Count Squares
- Nth Even Fibonacci Number
- Minimize the sum of product
- Squares in a Matrix
- Sum of dependencies in a graph
- Check if two arrays are equal or not
- Check if string is rotated by two places
- Find first set bit
- Find first repeated character
- Find the element that appears once in sorted array
- Last index of One
- First element to occur k times
- Check whether K-th bit is set or not
- Remove Duplicates from unsorted array
- Uncommon characters
- Find minimum and maximum element in an array
- Rotate Bits
- Pair cube count
- Rightmost different bit
- Set kth bit
- Toggle bits given range
- Closest Number
- Remove common characters and concatenate
- Repeated Character
- Check if strings are rotations of each other or not

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Name

narahc321

Rank in Institute

#125

Courses Attended

Campus Ambassador

Overall Coding Score: 709

Monthly Coding Score: 0

Weekly Coding Score: 0

- Queue using two Stacks
- Stack using two queues
- Level order traversal in spiral form
- DFS of Graph
- Intersection of two sorted Linked lists
- Count distinct elements in every window
- BFS of graph
- Reverse a linked list
- Lowest Common Ancestor in a Binary Tree
- Determine if Two Trees are Identical
- Print all nodes that don't have sibling
- Lowest Common Ancestor in a BST
- Binary Heap Operations
- Largest subarray with 0 sum
- Check if Linked List is Palindrome
- Josephus problem
- Right View of Binary Tree
- Pairwise swap elements of a linked list
- Given a linked list of 0s, 1s and 2s, sort it.
- Add two numbers represented by linked lists
- Detect Loop in linked list
- Reverse a Doubly Linked List
- Symmetric Tree
- XOR Linked List
- Merge Sort
- Sum Tree
- Quick Sort
- Mirror Tree
- Two Mirror Trees
- Rotate a Linked List
- Maximum path sum
- Longest consecutive sequence in Binary tree
- Diameter of Binary Tree
- Check for Balanced Tree
- Heap Sort
- Nth node from end of linked list
- Left View of Binary Tree
- Merge two sorted linked lists
- Anagram
- Search in a Rotated Array
- Maximize Toys
- Trailing zeroes in factorial
- Minimum number of Coins
- Sum of Middle Elements of two sorted arrays
- Reverse words in a given string
- Activity Selection
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Two numbers with sum closest to zero
- Longest Distinct characters in string
- N meetings in one room
- Remove Duplicates
- Maximum sum increasing subsequence
- Triangular Number
- Subarray with given sum
- Leaders in an array
- Swap all odd and even bits
- Count number of hops
- Count pairs with given sum
- Cycle Race
- Copy Set Bits in Range
- Overlapping rectangles
- Number Of Open Doors
- Day of the week
- Shop in Candy Store
- Check If two Line segments Intersect
- Largest number possible
- 0 - 1 Knapsack Problem
- Cutted Segments
- Perfect Numbers
- Equilibrium point
- Finding the numbers
- Chocolate Distribution Problem
- Flood fill Algorithm
- Roman Number to Integer
- Find Nth root of M
- Minimum Operations
- Find all pairs with a given sum
- Check if frequencies can be equal
- K-th element of two sorted Arrays
- Common elements
- Element with left side smaller and right side greater
- Array Subset of another array
- Second most repeated string in a sequence
- Shortest Common Supersequence
- Swapping pairs make sum equal
- String Ignorance
- Jumping Caterpillars
- Minimum indexed character
- Geek and its Colored Strings
- Count the triplets
- Save Ironman

- Strongly Connected Components (Kosaraju's Algo)
- Max length chain
- Minimum Spanning Tree
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- LRU Cache
- Box Stacking
- Minimum Swaps to Sort
- Rat in a Maze Problem
- Detect cycle in an undirected graph
- Detect cycle in a directed graph
- Reverse a Linked List in groups of given size.
- Check for BST
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection Point in Y Shapped Linked Lists
- Connect Nodes at Same Level
- Flattening a Linked List
- Remove loop in Linked List
- Range Minimum Query
- Topological sort
- Print a Binary Tree in Vertical Order
- Merge K sorted linked lists
- Find the number of islands
- Get minimum element from stack
- Serialize and Deserialize a Binary Tree
- Circular tour
- Generate IP Addresses
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Overlapping Intervals
- Maximum Index
- Longest Increasing Subsequence
- Parenthesis Checker
- Longest Common Subsequence
- Minimum number of jumps
- Egg Dropping Puzzle
- Edit Distance
- Magic Triplets
- nCr
- Consecutive 1's not allowed
- Path in Matrix
- Trapping Rain Water
- Subset Sum Problem
- Minimum Platforms
- Stock buy and sell
- Largest Number formed from an Array
- Jumping Numbers
- Longest Palindrome in a String
- Rearrange Array Alternately
- Relative Sorting
- Maximum of all subarrays of size k
- Boolean Matrix Problem
- Sorting Elements of an Array by Frequency
- Design a tiny URL or URL shortener
- Nuts and Bolts Problem
- Special Keyboard
- Form a palindrome
- Inversion of array
- Longest consecutive subsequence
- Number of pairs
- Coin Piles
- Circle of strings
- Minimize the heights
- Next larger element
- Combination Sum
- Combination Sum - Part 2
- Kth smallest element
- 3 Divisors
- Longest Common Substring
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Shortest Source to Destination Path
- Trie | (Insert and Search)
- Find all four sum numbers
- Word Boggle
- Is Sudoku Valid
- Find whether path exist
- Largest prime factor
- Rearrange characters
- First non-repeating character in a stream
- K
^{th}largest element in a stream - Zero Sum Subarrays
- Smallest window in a string containing all the characters of another string
- Floyd Warshall
- Geek collects the balls
- Smallest Positive missing number
- Array Pair Sum Divisibility Problem
- Page Faults in LRU
- Rotten Oranges
- CamelCase Pattern Matching
- Longest Common Prefix in an Array
- Matrix Chain Multiplication
- Last two digits of Fibonacci
- Optimal Strategy For A Game