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Displaying all 575 posts

POST TITLE	POST DATE	LABELS
Strings-String Compression [codingblocks]	2020-12-14	CodingBlock, string
CanYouReadThis? [codingblocks]	2020-12-14	CodingBlock, string
Strings-Max Frequency Character [codingblocks]	2020-12-14	CodingBlock, string
Strings-Difference in Ascii Codes [codingblocks]	2020-12-14	CodingBlock, string
Strings-isPalindrome [codingblocks]	2020-12-14	CodingBlock, string
Piyush and Magical Park [codingblocks]	2020-12-12	CodingBlock, Matrix, string
Form Biggest Number [codingblocks]	2020-12-12	Array, CodingBlock
Maximum Circular Sum [codingblocks]	2020-12-12	Array, CodingBlock, Dynamic Programming
Maximum Subarray Sum (Minimum Subarray Sum) [codingblocks]	2020-12-12	Array, CodingBlock, Dynamic Programming
Matrix Search [codingblocks]	2020-12-07	Array, CodingBlock, Matrix
Spiral Print Clockwise [codingblocks]	2020-12-07	Array, CodingBlock, Matrix
Find Upper and Lower bound [codingblocks]	2020-12-06	Array, CodingBlock
Help Rahul To Search [codingblocks]	2020-12-06	Array, CodingBlock
Sorting In Linear Time [codingblocks]	2020-12-06	Array, CodingBlock
Rotate Image(N * N Array) [codingblocks]	2020-12-06	Array, CodingBlock
Kth Root [codingblocks]	2020-12-06	Array, CodingBlock
Wave Print Column Wise [codingblocks]	2020-12-05	Array, CodingBlock
Target Sum Triplet [codingblocks]	2020-12-04	Array, CodingBlock
Sum Of Two Array [codingblocks]	2020-12-04	Array, CodingBlock
Insertion Sort [codingblocks]	2020-12-04	Array, CodingBlock
Wave Print Row Wise [codingblocks]	2020-12-04	Array, CodingBlock
Target Sun Pair [codingblocks]	2020-12-04	Array, CodingBlock
Bubble Sort [codingblocks]	2020-12-04	Array, CodingBlock
Binary Search [codingblocks]	2020-12-04	Array, CodingBlock
Selection Sort [codingblocks]	2020-12-04	Array, CodingBlock
String Sort [codingblocks]	2020-12-03	Array, CodingBlock
Sort Game [codingblocks]	2020-12-03	Array, CodingBlock
Chewbacca and Number [codingblocks]	2020-12-01	Array, CodingBlock
Prime Visits [codingblocks]	2020-12-01	Array, CodingBlock
Two Sum	2019-11-11	Hashing(Map), JAVA, LeetCode Sol.
Jumping in Microservices	2019-08-17	System Design
Monolithic Architecture	2019-08-15	System Design
Load Balancing & Consistent Hashing	2019-03-03	System Design
What is Scaling of a system?	2019-03-02	System Design
Check if a number is Palindrome	2018-10-02	JAVA, maths, string
Find Pair with given Sum in the Array	2018-10-02	Array, Hashing(Map), JAVA
Write a program to reverse digits of a number and String	2018-10-02	JAVA, maths, string
Print all possible strings (Function Problem)	2017-10-15	Array, string
Replace all ‘0’ with ‘5’ in an input Integer (Function Problem)	2017-10-14	Array
Product array puzzle	2017-08-16	Array, miscellaneous problems
Roman Number to Integer	2017-08-16	miscellaneous problems
Maximum of all sub-arrays of size k	2017-08-16	Array, stack
Two numbers with sum closest to zero	2017-08-16	Array, miscellaneous problems
Find the Odd Occurence	2017-08-16	Bit
Maximum Difference	2017-08-16	Array
Longest Palindrome in a String	2017-08-16	Dynamic Programming, string
Does robot moves circular	2017-08-13	miscellaneous problems, string
First non-repeating character in a stream	2017-08-13	C++ STL, Link_list, miscellaneous problems, string
Next Permutation	2017-08-11	Array, miscellaneous problems
Subarray with given sum	2017-08-07	Array, C++ STL, Hashing(Map)
Sort an array of 0s, 1s and 2s ( Dutch National Flag Algorithm )	2017-08-07	Algorithm, Array
Solve the Sudoku	2017-08-07	Backtracking, Matrix
N-Queen Problem	2017-08-07	Backtracking, Matrix
Subarray with 0 sum	2017-08-07	Array, C++ STL, Hashing(Map)
Largest subarray of 0's and 1's	2017-08-04	Array, C++ STL, Hashing(Map)
Merge two sorted arrays with O(1) extra space	2017-08-04	Array
Binary Search Tree Iterator @LeetCode	2017-07-04	binary tree, C++ STL, LeetCode Sol.
Evaluation of Postfix Expression	2017-07-04	C++ STL, stack
Infix to Postfix	2017-07-04	C++ STL, stack
Reverse a string using Stack	2017-07-04	C++ STL, stack, string
Flood fill Algorithm	2017-06-30	Algorithm, Graph, Matrix
Transitive closure of a Graph	2017-06-30	Dynamic Programming, Graph
Floyd Warshall Algorithm	2017-06-30	Algorithm, Dynamic Programming
Count the paths	2017-06-30	Graph
Shortest path from 1 to n	2017-06-30	Graph, maths
Rat in a Maze Problem	2017-06-30	Backtracking, Graph, Matrix
Permutations of a given string	2017-06-30	string
Jumping Numbers	2017-06-30	maths
Stock buy and sell	2017-06-30	Array
Finding Number	2017-06-30	Array, Searching
BFS traversal of graph	2017-06-30	Algorithm, C++ STL, Graph
Print Common Nodes in BST	2017-06-30	Array, binary tree
Linked List that is Sorted Alternatingly	2017-06-30	Link_list
Counting elements in two arrays	2017-06-30	Array, Searching
Modify Linked List	2017-06-30	Link_list
Add One Row to Tree @LeetCode	2017-06-26	binary tree, LeetCode Sol.
Construct String from Binary Tree @LeetCode	2017-06-26	binary tree, LeetCode Sol.
Subtree of Another Tree @LeetCode	2017-06-26	binary tree, LeetCode Sol.
Binary Tree Tilt @LeetCode	2017-06-26	binary tree, LeetCode Sol.
Sliding Window Maximum @LeetCode	2017-06-21	Array, LeetCode Sol.
Kth Largest Element in an Array @LeetCode	2017-06-21	Array, Heap, LeetCode Sol.
Does array represent Heap	2017-06-21	Array, Heap
Can Place Flowers @LeetCode	2017-06-20	Array, LeetCode Sol.
K-Sum Paths	2017-06-20	binary tree
Search Insert Position @LeetCode	2017-06-18	Array, LeetCode Sol.
Third Maximum Number @LeetCode	2017-06-18	Array, LeetCode Sol.
Move Zeroes @LeetCode	2017-06-18	Array, LeetCode Sol.
Find All Numbers Disappeared in an Array @LeetCode	2017-06-18	Array, LeetCode Sol.
Remove Element @LeetCode	2017-06-18	Array, LeetCode Sol.
Plus One @LeetCode	2017-06-17	Array, LeetCode Sol.
Two Sum @LeetCode	2017-06-17	Array, LeetCode Sol.
Reshape the Matrix @LeetCode	2017-06-17	LeetCode Sol., Matrix
Max Consecutive Ones @LeetCode	2017-06-17	Array, LeetCode Sol.
AVL Tree Deletion	2017-06-15	binary tree
Find first and last occurrence of x	2017-06-15	Array, Searching
Index Of an Extra Element	2017-06-15	Array, Searching
Find the element that appears once in sorted array	2017-06-15	Array, Bit, Searching
Who Will Win?	2017-06-15	miscellaneous problems, Searching
Merge Two Binary Trees @LeetCode	2017-06-14	binary tree, LeetCode Sol.
Find Largest Value in Each Tree Row @LeetCode	2017-06-14	binary tree, LeetCode Sol.
Path Sum III @LeetCode	2017-06-14	binary tree, LeetCode Sol.
Find k-th smallest element in BST	2017-06-13	binary tree
Find a pair with given target in BST	2017-06-13	binary tree
Inorder Successor in BST	2017-06-13	binary tree
Wildcard Matching @LeetCode	2017-06-12	Dynamic Programming, LeetCode Sol., string
Circular tour	2017-06-12	stack
X Total Shapes	2017-06-12	Graph
Construct Binary Tree from Parent Array	2017-06-11	Array, binary tree
Operations on Binary Min Heap	2017-06-10	Heap
Quick Sort ( Array )	2017-06-10	Algorithm, Array
Merge Sort ( Array )	2017-06-10	Algorithm, Array
Insertion Sort ( Array )	2017-06-10	Algorithm, Array
Selection Sort ( Array )	2017-06-10	Algorithm, Array
Bubble Sort ( Array )	2017-06-10	Algorithm, Array
Union of Two Linked Lists	2017-06-10	Link_list
Intersection of Two Linked Lists	2017-06-10	Link_list
Merge Sort for Linked List	2017-06-10	Algorithm, Link_list
Trie Data Structure	2017-06-09	Trie
Trie | (Delete)	2017-06-09	Trie
Trie | (Insert and Search)	2017-06-09	Trie
Kadane's Algorithm	2017-06-09	Algorithm, Dynamic Programming
Insert in a Sorted List	2017-06-09	Link_list
Pattern Searching : Boyer Moore Algorithm – Bad Character Heuristic	2017-06-09	Algorithm
Pattern Searching : KMP Algorithm	2017-06-09	Algorithm
Rod Cutting	2017-06-07	Dynamic Programming
Sum of bit differences	2017-06-07	Bit
Longest Palindromic Subsequence	2017-06-07	Dynamic Programming, string
Reverse Bits @LeetCode	2017-06-04	Bit, LeetCode Sol.
Single Number II @LeetCode	2017-06-04	Bit, LeetCode Sol.
Power of Two @LeetCode	2017-06-04	Bit, LeetCode Sol.
Number of 1 Bits @LeetCode	2017-06-04	Bit, LeetCode Sol.
Majority Element @LeetCode < Moore’s Voting Algorithm >	2017-06-04	Algorithm, Bit, LeetCode Sol.
Angle between hour and minute hand	2017-06-02	maths, miscellaneous problems
Common elements	2017-06-02	Array, miscellaneous problems
Squares in a Matrix	2017-06-02	maths, Matrix
Game of XOR	2017-06-02	Bit
Thief trying to escape	2017-06-01	miscellaneous problems
Geek and Coffee Shop	2017-06-01	miscellaneous problems
Binary Tree Paths @LeetCode	2017-05-31	binary tree, LeetCode Sol.
Number Complement @LeetCode	2017-05-31	Bit, LeetCode Sol.
Hamming Distance @LeetCode	2017-05-31	Bit, LeetCode Sol.
Kth Smallest Element in a BST @LeetCode	2017-05-31	binary tree, LeetCode Sol.
Invert the Bits	2017-05-31	Bit
Swap bits	2017-05-31	Bit
Insertion Sort List @LeetCode	2017-05-30	LeetCode Sol., Link_list
Find the two non-repeating elements in an array of repeating elements	2017-05-30	Bit, miscellaneous problems
Change Bits	2017-05-30	Bit
Length of the Longest Consecutive 1s in Binary Representation	2017-05-30	Bit
Check if a number can be expressed as a sum of consecutive numbers	2017-05-30	Bit, miscellaneous problems
Replace the Bit	2017-05-30	Bit
Element that appears once where every element occurs twice	2017-05-30	Bit
XOR of all elements	2017-05-30	Bit
Find missing number in another array which is shuffled copy	2017-05-30	Bit
Binary Tree Right Side View @LeetCode	2017-05-28	binary tree, C++ STL, LeetCode Sol., stack
Clone a linked list with next and random pointer	2017-05-28	Link_list
Sum Root to Leaf Numbers @LeetCode	2017-05-28	binary tree, LeetCode Sol.
Flatten Binary Tree to Linked List @LeetCode	2017-05-28	binary tree, LeetCode Sol.
Path Sum II @LeetCode	2017-05-27	binary tree, LeetCode Sol.
Construct Binary Tree from Inorder and Postorder Traversal @LeetCode	2017-05-27	binary tree, LeetCode Sol.
Construct Binary Tree from Preorder and Inorder Traversal @LeetCode	2017-05-27	binary tree, LeetCode Sol.
Binary Tree Zigzag Level Order Traversal @LeetCode	2017-05-26	binary tree, C++ STL, LeetCode Sol., stack
Binary Tree Postorder Traversal @LeetCode	2017-05-26	binary tree, C++ STL, LeetCode Sol., stack
Binary Tree Preorder Traversal @LeetCode	2017-05-26	binary tree, C++ STL, LeetCode Sol., stack
Polynomial Addition	2017-05-25	Link_list
Longest Substring Without Repeating Characters @LeetCode	2017-05-22	Dynamic Programming, string
Reverse Integer @LeetCode	2017-05-22	maths
Binary Tree Level Order Traversal @LeetCode	2017-05-22	binary tree, C++ STL, LeetCode Sol., stack
Validate Binary Search Tree @LeetCode	2017-05-20	binary tree, LeetCode Sol.
Unique Binary Search Trees @LeetCode	2017-05-20	binary tree, Dynamic Programming, LeetCode Sol.
Binary Tree Inorder Traversal @LeetCode	2017-05-20	binary tree, C++ STL, LeetCode Sol., stack
Sum of Left Leaves @LeetCode	2017-05-14	binary tree, LeetCode Sol., stack
Invert Binary Tree @LeetCode	2017-05-14	binary tree, LeetCode Sol., stack
Minimum Depth of Binary Tree @LeetCode	2017-05-13	binary tree, LeetCode Sol.
Balanced Binary Tree @LeetCode	2017-05-13	binary tree, LeetCode Sol.
Convert Sorted Array to Binary Search Tree @LeetCode	2017-05-11	binary tree, LeetCode Sol.
Maximum Depth of Binary Tree @LeetCode	2017-05-11	binary tree, C++ STL, LeetCode Sol., stack
Symmetric Tree @LeetCode	2017-05-10	binary tree, C++ STL, LeetCode Sol., stack
Same Tree @LeetCode	2017-05-10	binary tree, C++ STL, LeetCode Sol., stack
Number to words	2017-05-08	miscellaneous problems, string
Partition List	2017-05-04	Link_list
Swap Nodes in Pairs	2017-05-04	Link_list
Merge Sort for Linked Lists	2017-05-03	Link_list
Longest consecutive sequence in Binary tree	2017-04-13	binary tree
Sort a stack	2017-03-14	C++ STL, stack
Repetition of k length substring	2017-03-07	C++ STL, string
Count distinct elements in every window	2017-03-07	Array, C++ STL
Largest subarray with 0 sum	2017-03-07	Array, C++ STL
Floor in a Sorted Array	2017-03-07	Array, Searching
Print Nodes having K leaves	2017-03-03	binary tree
1[0]1 Pattern Count	2017-02-19	string
Generate Binary Numbers	2017-02-19	C++ STL, miscellaneous problems, stack
Substring - Subsequence problem	2017-02-09	Dynamic Programming, string
Minimum element in a sorted and rotated array	2017-02-09	Array, Searching
Get minimum element from stack	2017-02-09	C++ STL, stack
Relative Sorting	2017-02-09	Array
Root to leaf paths sum	2017-02-05	binary tree
Activity Selection	2017-02-05	Greedy
Find the number of islands	2017-02-01	Graph
Knapsack with Duplicate Items	2017-02-01	Dynamic Programming
Pair with greatest product in array	2017-02-01	Array
Excel Sheet	2017-01-28	miscellaneous problems
Check if a number can be expressed as x^y	2017-01-28	maths
Permutations in array	2017-01-28	Array
Minimize the sum of product	2017-01-28	Array
Power of 2	2017-01-28	maths
Max Level Sum in Binary Tree	2017-01-22	binary tree
Topological sort	2017-01-21	Graph
Detect cycle in an undirected graph	2017-01-21	Graph
Detect cycle in a directed graph	2017-01-21	Graph
Depth First Traversal for a Graph	2017-01-21	Graph
Check if two strings are k-anagrams or not	2017-01-21	string
Letter Writer	2017-01-17	Dynamic Programming
Number of 1's in smallest repunits	2017-01-17	maths
Perfect Numbers	2017-01-17	maths
Form a palindrome	2017-01-13	Dynamic Programming
Count Increasing Subsequences	2017-01-13	Dynamic Programming
Palindromic Strings	2017-01-13	Dynamic Programming
Lucas Number	2017-01-13	Dynamic Programming
Longest Common Substring	2017-01-12	Dynamic Programming, string
Number of Coins	2017-01-12	Dynamic Programming
Consecutive 1's not allowed	2017-01-12	Dynamic Programming
Merge two BST 's	2017-01-09	binary tree
Delete keys in a Linked list	2017-01-09	Link_list
Reverse each word in a given string	2017-01-09	string
Count ways to reach the n’th stair	2017-01-09	Dynamic Programming
Padovan Sequence	2017-01-09	Dynamic Programming, maths
Maximum Profit	2017-01-07	Dynamic Programming
Delete a Node in Single Linked List	2017-01-07	Link_list
Strong Number	2017-01-07	maths, miscellaneous problems
Find the Closest Element in BST	2017-01-06	binary tree
Check whether BST contains Dead End	2017-01-06	binary tree
Kth largest element in BST	2017-01-06	binary tree
Connect Nodes at Same Level	2017-01-05	binary tree
Path in Matrix	2017-01-05	Dynamic Programming, Matrix
Maximum difference between node and its ancestor	2017-01-05	binary tree
Chocolate Distribution Problem	2017-01-05	Array, miscellaneous problems
Make Binary Tree from Link List	2017-01-04	binary tree, C++ STL, Link_list, stack
Diagonal Traversal of Binary Tree	2017-01-04	binary tree
Largest Number formed from an Array	2017-01-04	Array, C++ STL, miscellaneous problems, string
Equilibrium index of an array	2017-01-04	Array
Chocolate Distribution Problem	2017-01-04	Array, miscellaneous problems
Maximum Index	2017-01-02	Array
Circular Prime Number	2017-01-02	maths, miscellaneous problems
Make a Distinct Digit Array	2017-01-02	Array
Sum of elements between k1'th and k2'th smallest elements	2017-01-02	Array
Prime Factors and their Powers	2016-12-30	maths, miscellaneous problems
Sphenic Number	2016-12-30	maths, miscellaneous problems
Stack using two queues	2016-12-30	C++ STL, stack
Queue using two Stacks	2016-12-30	C++ STL, stack
Rotate a 2D array without using extra space	2016-12-29	Matrix
Minimum steps to get desired array	2016-12-29	Array, miscellaneous problems
Find Prime numbers in a range	2016-12-29	maths, miscellaneous problems
Return two prime numbers	2016-12-29	maths, miscellaneous problems
Next sparse binary number	2016-12-29	maths
Convert array into Zig-Zag fashion	2016-12-29	Array, miscellaneous problems
Finding Position	2016-12-29	maths, miscellaneous problems
Strong Number	2016-12-29	maths, miscellaneous problems
Three Great Candidates	2016-12-28	Array, miscellaneous problems
Number of paths	2016-12-28	Dynamic Programming, Matrix
Move all negative elements to end	2016-12-27	Array, miscellaneous problems
AVL Tree Insertion	2016-12-27	binary tree
Max sum path in two arrays	2016-12-27	Array, miscellaneous problems
Palindromic Array	2016-12-27	Array, miscellaneous problems
Min Subsets with Consecutive Numbers	2016-12-27	Array, miscellaneous problems
Find Number of Numbers	2016-12-27	Array, maths, miscellaneous problems
Maximum value in a bitonic array	2016-12-23	Array, Searching
Pythagorean Triplet	2016-12-23	maths, miscellaneous problems
Sum of Middle Elements of two sorted arrays	2016-12-23	Array
Implement Queue using Linked List	2016-12-23	Link_list, stack
Check if given four points form a square	2016-12-23	maths, miscellaneous problems
Print matrix in diagonal pattern	2016-12-22	Matrix
Longest Consecutive Subsequence	2016-12-22	Array
Implement Atoi	2016-12-22	miscellaneous problems, string
Maximize sum after K negations	2016-12-21	Array, miscellaneous problems
Preorder to Postorder	2016-12-17	Array, binary tree
Preorder Traversal and BST	2016-12-17	Array, binary tree
Dr. Strange's powers	2016-12-16	maths, miscellaneous problems, string
Largest Even Number	2016-12-16	maths, miscellaneous problems, string
Elements before which no element is bigger	2016-12-16	Array
Equal Point in Sorted Array	2016-12-16	Array
Squares in N*N Chessboard	2016-12-16	maths, miscellaneous problems
Trailing zeroes in factorial	2016-12-16	maths, miscellaneous problems
Max distance between same elements	2016-12-13	Array, miscellaneous problems
Check if Linked List is Pallindrome	2016-12-10	Link_list
Expression Tree	2016-11-13	binary tree
Punish the Students	2016-11-13	Array, maths, miscellaneous problems
Repetitive Addition Of Digits	2016-11-13	maths
Magic Number	2016-11-13	maths, miscellaneous problems
Implement Queue using array	2016-11-07	Array, stack
Smallest number divisible by first n numbers	2016-11-07	maths
Count Squares	2016-11-07	maths
Student record	2016-11-05	miscellaneous problems
Print all possible strings	2016-11-05	string
Class Average	2016-11-04	maths
Perfect Reversible String	2016-11-04	string
Search a node in BST	2016-11-01	binary tree
Numbers containing 0's from 1 to N	2016-10-15	maths
Equilibrium point	2016-10-14	Array
Unique rows in boolean matrix	2016-10-14	Matrix
Maximum of all subarrays of size k	2016-10-11	Array, Dynamic Programming
Power of Four	2016-10-11	maths
Check if the number is Fibonacci	2016-10-11	maths
Nth Fibonacci Number	2016-10-11	maths
Series GP	2016-10-11	maths
Binary number to decimal number	2016-10-11	maths
Repeated sum of digits	2016-10-10	maths
Bottom View of a Binary Tree	2016-10-08	binary tree
Print Nodes in Top View of Binary Tree	2016-10-08	binary tree
Find Maximum value	2016-10-06	Array
Multiply Array	2016-10-06	Array
Boolean Matrix Problem	2016-10-06	Matrix
Subtration in Linked List	2016-10-05	Link_list
Multiply two linked lists	2016-10-05	Link_list
Binary representation	2016-10-04	Bit
1's Complement	2016-10-04	Bit
The XOR Gate	2016-10-04	Bit
Combinational Logic	2016-10-04	Bit
Remove loop in Linked List	2016-09-27	Link_list
Number of paths in a matrix with k coins	2016-09-27	Matrix
Find nth element of spiral matrix	2016-09-26	Matrix
Spirally traversing a matrix	2016-09-26	Matrix
Search in a matrix	2016-09-26	Matrix, Searching
Pascal Triangle	2016-09-24	Array
Rotate by 90 degree	2016-09-23	Matrix
Count zeros in a sorted matrix	2016-09-23	Matrix
Diagonal sum	2016-09-23	Matrix
Toeplitz matrix	2016-09-22	Matrix
Implement strstr	2016-09-22	string
Reverse alternate levels of a perfect binary tree	2016-09-22	binary tree
Validate an IP Address	2016-09-21	string
MEGA SALE	2016-09-07	Array, miscellaneous problems
Special array reversal	2016-09-07	string
GCD of Array	2016-09-07	Array, maths
Sum of two numbers represented as arrays	2016-09-06	Array
Find number of Rotation	2016-09-06	Array
Good String	2016-09-06	string
Check if a given Binary Tree is Heap	2016-09-06	binary tree
Next greater number set digits	2016-09-05	miscellaneous problems, string
Missing ranges of numbers	2016-09-04	Array, miscellaneous problems
Reverse array in groups	2016-09-04	Array
Max value	2016-09-04	Array
Third largest element ( without sorting )	2016-09-04	Array
Rearranging array	2016-09-03	Array
Buildings receiving sunlight	2016-09-03	Array
Even occurring elements	2016-08-30	Array
Longest Distinct characters in string	2016-08-29	string
0 - 1 Knapsack Problem	2016-08-29	Dynamic Programming
Decimal Equivalent of Binary Linked List	2016-08-28	Link_list
Sorting Elements of an Array by Frequency	2016-08-28	Array
Max rope cutting	2016-08-27	Dynamic Programming
Extreme nodes in alternate order	2016-08-26	binary tree
Maximum Rectangular Area in a Histogram	2016-08-25	Array, stack
Rearrange an array with O(1) extra space	2016-08-25	Array
Minimum of 3	2016-08-25	Array, Dynamic Programming
K’th smallest element	2016-08-25	Array
Factorials of large numbers	2016-08-23	Array
Longest Even Length Substring	2016-08-22	string
Ordering of strings	2016-08-21	string
Search Pattern	2016-08-21	string
Replace by X	2016-08-21	string
Trapping Rain Water	2016-08-21	Array
Equal Sum	2016-08-21	Array
Wave Array	2016-08-20	Array
Find Missing And Repeating	2016-08-20	Array
Largest Sum Contiguous Subarray - Kadane's Algorithm	2016-08-20	Array, Dynamic Programming
Largest square formed in a matrix	2016-08-18	Dynamic Programming
Consecutive elements	2016-08-18	string
Count ways to N'th Stair(Order does not matter)	2016-08-18	Dynamic Programming
Count number of hops	2016-08-18	Dynamic Programming
Check if subtree	2016-08-18	binary tree
Reach the Nth point	2016-08-17	Dynamic Programming
Reach a given score	2016-08-17	Dynamic Programming
Shortest direction	2016-08-17	string
Run Length Encoding	2016-08-17	string
Total count	2016-08-16	Array
Minimum sum	2016-08-16	Array
How many pizzas ?	2016-08-15	Array
Replace all ‘0’ with ‘5’ in an input Integer	2016-08-15	Array
Largest product of a subarray of size k	2016-08-15	Array
Minimum number of jumps	2016-08-14	Dynamic Programming
Leaf at same level	2016-08-13	binary tree
Coin Change	2016-08-13	Dynamic Programming
Egg Dropping Puzzle	2016-08-12	Dynamic Programming
Remove every k'th node	2016-08-12	Link_list
Count all possible paths from top left to bottom right of a mXn matrix	2016-08-11	Dynamic Programming
Find if string is K-Palindrome or not	2016-08-11	Dynamic Programming
Minimum time to finish tasks without skipping two consecutive	2016-08-10	Dynamic Programming
Maximum sum increasing subsequence	2016-08-10	Dynamic Programming
Edit Distance	2016-08-10	Dynamic Programming
Longest Common Subsequence	2016-08-09	Dynamic Programming
Linked List in Zig-Zag fashion (Greater Smaller Zig-Zag)	2016-08-07	Link_list
Rearrange even & odd Nodes in a linked list	2016-08-07	Link_list
Merge K sorted linked lists	2016-08-06	Link_list
Structurally Unique BST	2016-08-06	binary tree
Flattening a Linked List	2016-08-05	Link_list
Sum of Digits Divisibility	2016-08-04	maths
Sum of primes	2016-08-04	maths
Multiples Power	2016-08-04	maths
Segregate even and odd nodes in a Linked List	2016-08-04	Link_list
Multiply 2 matrices	2016-08-03	maths
LCM And HCF	2016-08-03	maths
Add Binary Strings	2016-08-03	string
Remove Duplicates from an Unsorted Sring	2016-08-03	string
Amend The Sentence	2016-08-03	string
Reverse words in a given string	2016-08-03	string
LCM of given array elements	2016-08-02	Array, maths
Sum of Digits Multiple	2016-08-02	maths
Area of Rectange, Right Angled Triangle and Circle	2016-08-02	maths
Swap two numbers	2016-08-01	maths
Add two fractions	2016-08-01	maths
The Block Game (CodeChef Problem code: PALL01 )	2016-08-01	miscellaneous problems
Primality Test ( CodeChef Problem code: PRB01 )	2016-08-01	miscellaneous problems
Valid Triangles ( CodeChef Problem code: FLOW013 )	2016-07-31	miscellaneous problems
Second Largest ( CodeChef Problem code: FLOW017 )	2016-07-31	miscellaneous problems
Case-specific Sorting of Strings	2016-07-31	string
Subsequence matching	2016-07-31	string
First and Last Digit ( codechef Problem code: FLOW004)	2016-07-31	miscellaneous problems
Remove “b” and “ac” from a given string	2016-07-30	string
Remove all duplicates from a given string	2016-07-30	string
Count Substrings Starting And Ending With 1	2016-07-30	string
First Non Repeating Character	2016-07-30	string
Pattern Searching	2016-07-30	string
Check Anagram String	2016-07-30	string
Check String for Binary	2016-07-30	string
Print a Binary Tree in Vertical Order	2016-07-28	binary tree
Construct Binary Tree from given Parent Array representation	2016-07-28	binary tree
Symmetric Tree (Mirror Image of itself)	2016-07-27	binary tree
Maximum Path Sum in a Binary Tree	2016-07-27	binary tree
Find Minimum Depth of a Binary Tree	2016-07-27	binary tree
Check whether a binary tree is a complete tree or not	2016-07-26	binary tree
Change a Binary Tree so that every node stores sum of all nodes in left subtree	2016-07-26	binary tree
Morris traversal for Preorder	2016-07-25	binary tree
Construct a special tree from given preorder traversal	2016-07-24	binary tree
Construct Special Binary Tree from given Inorder traversal	2016-07-24	binary tree
Sorted insert for circular linked list	2016-07-23	Link_list
Occurence of an integer in a Linked List	2016-07-23	Link_list
linked list of strings forms a palindrome	2016-07-23	Link_list
Binary Tree to DLL	2016-07-22	binary tree
Find the maximum sum leaf to root path in a Binary Tree	2016-07-22	binary tree
Remove characters from alphanumeric string	2016-07-21	string
Count Alphabets in String	2016-07-21	string
Keypad typing	2016-07-20	string
Extraction of secret message	2016-07-20	string
Remove spaces from a given string	2016-07-20	string
Remove characters from the first string which are present in the second string	2016-07-20	string
Palindrome String	2016-07-19	string
reverse the given string permanentally.	2016-07-19	string
Print array having level order in inorder	2016-07-19	binary tree
Maximum Occuring Character	2016-07-18	string
Sorted Linked List to Balanced BST	2016-07-18	binary tree
Reverse Linked List in given Range m and n	2016-07-18	Link_list
Array implementation of queue	2016-07-17	stack
Check if a binary tree is subtree of another binary tree	2016-07-17	binary tree
Foldable Binary Trees	2016-07-17	binary tree
Double Tree	2016-07-17	binary tree
print all the root-to-leaf paths per line of a Binary Tree	2016-07-17	binary tree
Morris Traversal ( Threaded Binary Tree )	2016-07-17	binary tree
Odd even level difference in a Binary tree	2016-07-17	binary tree
Binary Search Tree : Insertion ( Iterative Function )	2016-07-16	binary tree
Max Heap Implementation in C++	2016-07-16	miscellaneous problems
Binary Search in an Array	2016-07-16	Array, miscellaneous problems
Minimum distance between two given nodes of a Binary Tree	2016-07-14	binary tree
Lowest Common Ancestor in a Binary Tree	2016-07-14	binary tree
Right View of Binary Tree	2016-07-14	binary tree
Left View of Binary Tree	2016-07-14	binary tree
Boundary Traversal of binary tree	2016-07-14	binary tree
Postorder traversal from given Inorder and Preorder traversals	2016-07-13	Array, binary tree
Print Common Nodes in Two Binary Search Trees ( intersection of two BSTs )	2016-07-13	binary tree
Simple Min Heap Implementation in C++	2016-07-13	miscellaneous problems
K’th Largest Element in BST	2016-07-13	binary tree
Transform a BST to greater sum tree	2016-07-12	binary tree
Binary Tree to Binary Search Tree Conversion	2016-07-12	binary tree
Merge Two Balanced Binary Search Trees	2016-07-12	binary tree
Find a pair with given sum in a Balanced BST	2016-07-11	binary tree
Total number of divisions	2016-07-10	Array
Construct BST from given preorder traversal	2016-07-10	binary tree
Two nodes of a BST are swapped, correct the BST	2016-07-10	binary tree
Swap 2 nodes in a Binary tree	2016-07-10	binary tree
Rotate a Linked List by K values	2016-07-10	Link_list
Pairwise swap elements of a linked list by swapping data	2016-07-10	Link_list
Find if there is a triplet in a Balanced BST that adds to zero	2016-07-10	binary tree
Remove BST keys outside the given range	2016-07-09	binary tree
Square root	2016-07-09	maths
Immediate Smaller Element	2016-07-09	Array
Binary Array Sorting	2016-07-09	Array
Second largest element from an array	2016-07-09	Array
Sorted Array to Balanced BST	2016-07-09	Array, binary tree
Find k-th smallest element in BST (Order Statistics in BST)	2016-07-08	binary tree
Inorder predecessor and successor for a given key in BST	2016-07-08	binary tree
Find the node with minimum value in a Binary Search Tree	2016-07-08	binary tree
Maximum width of a binary tree	2016-07-08	binary tree
Diameter of Binary Tree	2016-07-08	binary tree
Count BST nodes that lie in a given range	2016-07-08	binary tree
Average of a stream of numbers	2016-07-08	Array
Check if an array is sorted	2016-07-08	Array
Add 1 to a number represented as linked list	2016-07-07	Link_list
Compare two strings represented as linked lists	2016-07-07	Link_list
Rearrange a given linked list in-place in Zig Zag	2016-07-07	Link_list
Remove duplicates from an unsorted linked list	2016-07-07	Link_list
Intersection Point in Y Shapped Linked Lists	2016-07-07	Link_list
Delete nodes having greater value on right	2016-07-07	Link_list
Reverse a Linked List in groups of given size.	2016-07-07	Link_list
Given a linked list, reverse alternate nodes and append at the end	2016-07-06	Link_list
Sort linked list which is already sorted on absolute values	2016-07-06	Link_list
Intersection of two sorted Linked lists	2016-07-06	Link_list
Given an array, print the Next Greater Element (NGE) for every element	2016-07-06	Array, C++ STL, stack
Check if an array is sorted	2016-07-06	Array
Sort a linked list of 0s, 1s and 2s	2016-07-06	Link_list
Delete N nodes after M nodes of a linked list	2016-07-06	Link_list
Rearrange/Reorder a given linked list in-place	2016-07-06	Link_list
Find the nearest smaller numbers on left side in an array	2016-07-05	Array, stack
Check for balanced parentheses in an expression	2016-07-05	stack
Implement two stacks in an array	2016-07-05	Array, stack
Implement Stack using Linked List	2016-07-05	Link_list, stack
Implement stack using array	2016-07-05	Array, stack
array rotation	2016-07-05	Array
Merge 2 sorted linked list in reverse order	2016-07-05	Link_list
Split a Circular Linked List into two halves	2016-07-05	Link_list
Reverse a Doubly Linked List	2016-07-05	Link_list
Delete Middle of Linked List	2016-07-04	Link_list
Insert a node in Doubly linked list at given position	2016-07-04	Link_list
Andrash and Stipendium	2016-07-04	Array, miscellaneous problems
Add all greater values to every node in a given BST	2016-07-04	binary tree
Delete a node from BST	2016-07-04	binary tree
Check if a linked list is Circular Linked List	2016-07-04	Link_list
Sorted Array to Balanced BST	2016-07-04	binary tree
Inorder Traversal and BST	2016-07-04	binary tree
Print all nodes at distance k from root of Tree	2016-07-04	binary tree
determine if a binary tree is height-balanced	2016-07-04	binary tree
Convert a given tree to its Sum Tree	2016-07-03	binary tree
Level order traversal in spiral form	2016-07-03	binary tree
Reverse Level Order Traversal	2016-07-03	binary tree
Form a Tree from Postorder and Inorder	2016-07-03	binary tree
Determine if Two Trees are Identical	2016-07-03	binary tree
Root to leaf path sum equal to a given number in a TREE	2016-07-03	binary tree
Calculate Size of a tree	2016-07-03	binary tree
count leaf nodes in a binary tree	2016-07-03	binary tree
Convert a Binary Tree into its Mirror Tree	2016-07-03	binary tree
Check if two trees are Mirror	2016-07-03	binary tree
Check if a given Binary Tree is SumTree	2016-07-03	binary tree
Print all nodes that don’t have sibling	2016-07-03	binary tree
Binary Search Tree : Insertion	2016-07-03	binary tree
Tree: Level Order Traversal	2016-07-03	binary tree
Tree: Height of a Binary Tree	2016-07-03	binary tree
Tree: Inorder Traversal	2016-07-03	binary tree
Tree: Postorder Traversal	2016-07-03	binary tree
Tree: Preorder Traversal	2016-07-03	binary tree
Lowest Common Ancestor of a Binary Search Tree	2016-07-03	binary tree
Check tree for BST	2016-07-03	binary tree
Merge two sorted linked lists	2016-07-02	Link_list
Remove Linked List Elements	2016-07-02	Link_list
Delete Given Node in a Linked List	2016-07-02	Link_list
Odd Even Linked List	2016-07-02	Link_list
Remove Nth Node From End of List	2016-07-02	Link_list
Remove every Duplicates from Sorted List	2016-07-01	Link_list
Remove Duplicates from Sorted List	2016-07-01	Link_list
n'th node from end of linked list	2016-07-01	Link_list
Find Merge Point of Two Lists	2016-07-01	Link_list
Reverse a doubly linked list	2016-07-01	Link_list
Insert a node into a sorted doubly linked list	2016-07-01	Link_list
Detect Loop in linked list	2016-07-01	Link_list
Facing the sun	2016-07-01	Array
Remove Duplicates from Sorted Array	2016-07-01	Array
Reverse a linked list	2016-07-01	Link_list
Delete duplicate from list	2016-07-01	Link_list
Add Two Numbers	2016-07-01	Link_list
Chandu and Consecutive Letters	2016-06-30	Array
Terrible Chandu	2016-06-30	Array
Prateek and his Friends	2016-06-30	Array
Two Sum	2016-06-30	Array
Max sum no adjacent	2016-06-29	Array
Swap kth node	2016-06-27	Array
Count the numbers	2016-06-26	Array
Leaders in an array	2016-06-25	Array
UGLY number	2016-06-25	Array