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Katihar Engineering College Katihar
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C++, Java, C
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BASIC (4)
EASY (39)
MEDIUM (35)
HARD (7)
Minimum Moves
Sort a linked list of 0s, 1s and 2s
Find kth element of spiral matrix
Find triplets with zero sum
Duplicate Subtree
Find Common Nodes in two BSTs
Binary Tree to CDLL
K Sum Paths
Median of BST
Normal BST to Balanced BST
Kth Ancestor in a Tree
Smallest Positive Missing
Power Of Numbers
Binary Array Sorting
Level of Nodes
Strings Rotations of Each Other
Shortest Common Supersequence
Top K Frequent in Array
Maximum Index
Pythagorean Triplet
Sum of XOR of all pairs
Missing element of AP
Longest Palindromic Subsequence
Minimum Deletions
Number following a pattern
Subarrays Product Less than K
Bleak Numbers
Max Sum Increasing Subsequence
Knapsack with Duplicate Items
Number of paths
Longest Repeating Subsequence
Transitive closure of a Graph
Eventual Safe States
Floor in BST
Another Lucky String
Minimum XOR
Two Strings
3 - Numbers
Pairwise swap elements of a linked list
Remove duplicates from an unsorted linked list
Reverse a Doubly Linked List
Height of Binary Tree
Balanced Tree Check
Intersection Sorted Linked Lists
Find Transition Point
Level Order in spiral form
Identical Trees
Minimum distance in an Array
Inorder Successor in BST
Insert in a Sorted List
Symmetric Tree
Queue Reversal
Delete Mid of a Stack
Predict the Column
Check K-th Bit
Frequencies in a Limited Array
Sum of upper and lower triangles
Print Matrix in snake Pattern
Transpose of Matrix
String Rotated by 2 Places
Isomorphic Strings
Check Equal Arrays
Move All Zeroes to End
Missing number
Move all negative elements to end
Greater on right side
Minimum Operations
Number of 1 Bits
Copy Set Bits in Range
Sum 1 to n Divisors
Form a number divisible by 3 using array digits
Letters Collection
Unique Number of Occurrences
Chocolate Distribution
Linked List Group Reverse
AVL Tree Insertion
Nodes at given distance in binary tree
Palindromic Partitioning
Find the String
Better String
Making A Large Island
Array Search
Rotate Array by One
Min and Max in Array
Find the fine
close
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