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Indian Institute Of Engineering Science And Technology,Shibpur
Organization
Mentor Graphics
Language Used
C++, C, Java
Coding Score
1096
Problem Solved
410
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SCHOOL (2)
BASIC (42)
EASY (145)
MEDIUM (197)
HARD (24)
Reverse a linked list
Pairwise swap elements of a linked list
Node at a given index in linked list
Remove duplicates from an unsorted linked list
Inorder Traversal
Bubble Sort
Selection Sort
Insertion Sort
Check for BST
Right View of Binary Tree
K distance from root
Mirror Tree
Maximum Width of Tree
Delete without head pointer
Height of Binary Tree
Balanced Tree Check
Kth from End of Linked List
Middle of a Linked List
Left View of Binary Tree
Delete Middle of Linked List
Transform to Sum Tree
Queue using two Stacks
Remove Duplicates from a Sorted Linked List
Level Order in spiral form
Reverse Level Order Traversal
DFS of Graph
Stack using Linked List
BFS of graph
Identical Trees
Root to leaf path sum
Square Root
Lowest Common Ancestor in a BST
Binary Search
Run Length Encoding
Largest subarray of 0's and 1's
Level Order Line by Line
Odd even level difference
Unique rows in boolean matrix
Toeplitz matrix
Leaves at Same Level or Not
Convert to Roman No
Match specific pattern
Array Duplicates
Max Level Sum in Binary Tree
Special Stack
Longest consecutive sequence in Binary tree
Level order traversal
Inorder Successor in BST
Disjoint set (Union-Find)
Level of a Node in Binary Tree
Sum of leaf nodes in BST
Symmetric Tree
Next Right Node
Reverse first K of a Queue
Sum of Leaf Nodes
Delete Mid of a Stack
Product of an Array
Step by Step Condition
Longest Consecutive 1's
Power of 2
Equilibrium Point
Array Leaders
Print adjacency list
Print Matrix in snake Pattern
Transpose of Matrix
Rotate by 90 degree
Anagram
String Rotated by 2 Places
Reverse Words
Minimum indexed character
Panagram Checking
Parenthesis Checker
Minimum Cost of ropes
Count number of hops
First Repeating Element
Common Elements
Check Equal Arrays
Missing in Array
Roman Number to Integer
Excel Sheet | Part - 2
Max Value Permutation
Subarrays with given sum
Non-Repeating Element
Count the elements
Find Kth Rotation
Pairs which are Divisible by 4
Maximum AND Value
Sorted and Rotated Minimum
Maximum no of 1's row
Sum of elements between k1'th and k2'th smallest elements
Search in a Row-Column sorted matrix
Minimize the sum of product
Move all negative elements to end
Drive the car
Smallest subarray with sum greater than x
Remove Consecutive Characters
Convert a sentence into its equivalent mobile numeric keypad sequence
Remove Duplicates
Greater on right side
Twice Counter
Convert array into Zig-Zag fashion
Sort Unsorted Subarray
Find all pairs with a given sum
Does array represent Heap
Longest Common Prefix of Strings
First Repeated Character
Two sum -Pairs with 0 Sum
Play With OR
At Least K Occurrences
Count the Zeros
Length of longest subarray
Maximum sum of subarray less than or equal to x
Pangram Strings
Divisibility by 8
Adding Array Elements
Armstrong Numbers
Max Sum Subarray of size K
Nth Fibonacci Number
Change Bits
Party of Couples
Shortest path from 1 to n
Sieve of Eratosthenes
Minimum number of Coins
Perfect Numbers
Maximize Toys
Largest number possible
Final Destination
Trailing zeroes in factorial
Sum of all prime numbers between 1 and n
Find nth root of m
Prime Factors
Arithmetic Number
Row with Minimum 1s
Help the Old Man!!!
Chicks in a Zoo
Array to BST
Sum of dependencies in a graph
Count all possible paths from top left to bottom right
Sum of k smallest elements in BST
Queue using stack
First and last occurrences of x
Minimum Sum of Absolute Differences of Pairs
Smallest window containing 0, 1 and 2
Insert an Element at the Bottom of a Stack
Transform to Sum Tree
Sorting Elements of an Array by Frequency
Nearly Sorted Algorithm
Add Number Linked Lists
Rearrange a linked list
Merge 2 sorted linked list in reverse order
Detect Loop in linked list
Insert in Sorted Circular Linked List
QuickSort on Doubly Linked List
Count BST nodes that lie in a given range
Merge Sort
Quick Sort
Bottom View of Binary Tree
Intersection in Y Shaped Lists
Diameter of a Binary Tree
Heap Sort
Merge two sorted linked lists
Sum Tree
Construct Binary Tree from Parent Array
Connect Nodes of Levels
Flattening a Linked List
Diagonal Tree Traversal
Tree Boundary Traversal
Reverse alternate levels of a perfect binary tree
Directed Graph Cycle
Undirected Graph Cycle
LCA in Binary Tree
Range Minimum Query
The Celebrity Problem
Largest subarray with 0 sum
Topological sort
Vertical Tree Traversal
Merge K sorted linked lists
Find the number of islands
Serialize and deserialize a binary tree
Gas Station
Validate an IP Address
Dijkstra Algorithm
Minimum Spanning Tree
Interleaved Strings
Sorted subsequence of size 3
Multiply two strings
Palindrome Linked List
Strongly Connected
Rat in a Maze Problem - I
Bipartite Graph
Closest in BST
Merge two BST 's
Count distinct elements in every window
Trie | (Delete)
Find triplets with zero sum
Top View of Binary Tree
Merge Sort for Linked List
Euler Circuit in an Undirected Graph
Euler circuit and Path
Complete Binary Tree
Populate Inorder Successor for all nodes
Counting elements in two arrays
Foldable Binary Tree
Construct Tree from Inorder & Preorder
Count the nodes at distance K from leaf
Maximum path sum from any node
ZigZag Tree Traversal
Mother Vertex
Tower Of Hanoi
Smallest Positive Missing
Power Of Numbers
Kadane's Algorithm
Majority Element
Count Inversions
Indexes of Subarray Sum
Triplet Sum in Array
Spirally traversing a matrix
Longest Consecutive Subsequence
Postfix Evaluation
Stock span problem
Next Greater Element
K Sized Subarray Maximum
Fractional Knapsack
Combination Sum
Unique Subsets
Minimum Jumps
Detect Cycle using DSU
Stickler Thief
Ways to Reach the n'th Stair
Egg Dropping Puzzle
Optimal Strategy For A Game
Longest Increasing Subsequence
Longest Common Subsequence
0 - 1 Knapsack Problem
Equal Sum Partition
Preorder to BST
Find whether path exist
Kth Smallest
Implement Trie
Shortest Common Supersequence
Rotten Oranges
Most frequent word in an array of strings
Maximize The Cut Segments
Container With Most Water
Print Anagrams Together
Overlapping Intervals
Word Break
Prerequisite Tasks
4 Sum - All Quadruples
Excel Sheet | Part - 1
Sort 0s, 1s and 2s
Top k numbers in a stream
Single Among Doubles in a Sorted
Count Occurences of Anagrams
Single Among Doubles
Search in Rotated Sorted Array
Form the Largest Number
Subarray Sum Divisible By K
Maximum Product Subarray
Longest subarray with sum divisible by K
Row with max 1s
Swapping pairs make sum equal
Form a palindrome
Rotate a Matrix
Longest Subarray with Sum K
Max Sum without Adjacents
Factorials of large numbers
Length of the longest substring
Longest Common Substring
Longest substring with distinct characters
Longest Substring with K Uniques
Longest Palindrome in a String
Look and Say Pattern
Rod Cutting
K closest elements
Min Swaps to Group 1s
LCS of three strings
Longest Palindromic Subsequence
Largest Sum Subarray of Size at least K
First negative in every window of size k
First and Last Occurrences
Minimum Deletions
Print N-bit binary numbers having more 1s than 0s
Permutations of a String
Combination Sum - Part 2
Unique Number II
Minimum number of deletions and insertions
Coin Change (Count Ways)
Sequence of Sequence
Coin Change (Minimum Coins)
Dice throw
Power Set
Knapsack with Duplicate Items
Maximum path sum in matrix
Special Keyboard
Partition Equal Subset Sum
Get Minimum Squares
Count possible ways to construct buildings
Count digit groupings of a number
Array Pair Sum Divisibility Problem
Permutation with Spaces
Sum of Query II
Jumping Numbers
Find the Safe Position
Next Permutation
Filling Bucket
Longest Repeating Subsequence
Decode the string
Total Decoding Messages
Stream First Non-repeating
Segregate even and odd nodes in a Linked List
Largest square formed in a matrix
Kth Largest in a Stream
Check Mirror in N-ary tree
Floyd Warshall
Negative weight cycle
Techfest and the Queue
Maximum sum Rectangle
Jump Game
Subset Sum Problem
All Palindromic Partitions
Bellman-Ford
Open the gates
Remove K Digits
Number of Provinces
Paths from root with a specified sum
Insertion Sort for Singly Linked List
Subsets
Anti Diagonal Traversal of Matrix
Unique Number III
All Unique Permutations of an array
Course Schedule
Target Sum
Reverse a Stack
Replace every element with the least greater element on its right
Shortest Distance in a Binary Maze
Cheapest Flights Within K Stops
Maximum Stone Removal
Shortest Path in Weighted undirected graph
Water the plants
Grinding Geek
Flatten BST to sorted list
Reorder List
Clone List with Next and Random
Min distance between two given nodes of a Binary Tree
Max rectangle
Partition array to k subsets
Nodes at given distance in binary tree
Max Path Sum 2 Special Nodes
Trapping Rain Water
Max Circular Subarray Sum
Smallest window containing all characters of another string
Histogram Max Rectangular Area
Find median in a stream
Ugly Numbers
Search Pattern (KMP-Algorithm)
Edit Distance
Minimum sum partition
Palindromic Partitioning
Matrix Chain Multiplication
Boolean Parenthesization
Word Break - 2
Brackets in Matrix Chain Multiplication
Distribute candies in a binary tree
Find number of closed islands
Vertex Cover
Rotate Array
Count Linked List Nodes
Power of Four
Size of Binary Tree
Count Leaves in Binary Tree
Postorder Traversal
Queue using Linked List
Preorder Traversal
First Occurence
Is Linked List Length Even?
Count Non-Leaf Nodes in Tree
Bit Difference
Number is sparse or not
Reverse array in groups
Array Search
Binary Array Sorting
Binary String
Reverse a String
Rearranging array
At least two greater elements
Sort The Array
Check for subsequence
Immediate Smaller Element
Uncommon characters
Reversing the vowels
Remove Spaces
Rotate Array by One
Exceptionally odd
Array Subset
Rotating an Array
Maximum Perimeter of Triangle from array
GCD of Array
Check set bits
Check an Integer is power of 3 or not
Find the fine
LCM And GCD
Shortest un-ordered subarray
Sum Of Digits
Factorial
Absolute Difference of 1
Angle between hour and minute hand
Diagonal sum
Reverse an Array
Search in a 2D Matrix
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