# InterviewBit Problems

Itertools: Terminating Iterators : Unsolved Minimum Difference Subsets! : Unsolved Search for a Range : Unsolved CHOOSE4 : Unsolved Count Element Occurence : Unsolved Right view of Binary tree : Solved Height of every node in a tree : Unsolved Sort stack using another stack : Unsolved Task Scheduler : Solved Find the Defective Ball II : Solved Subarrays Xor less Than B : Unsolved Flip : Solved Gates of Heaven : Unsolved TEMPLATES : Unsolved Vowels : Unsolved Design Messenger : Solved Clone a linked list : Unsolved Count Complete Tree Nodes : Solved Numbers with most occurences : Unsolved Valid Email Address : Solved Max Product Subarray : Solved Sum binary tree or not : Unsolved KEEP SWAPPING : Unsolved Equal Array : Unsolved Good Ranges : Solved Distribute candies : Unsolved Starting indices of the substrings in s : Unsolved Math methods in JS : Solved Largest Continuous Sequence Zero Sum : Unsolved Subarrays with B Different Integers : Unsolved QUIRKS MODE : Solved OSI Model-3 : Unsolved Count Good Subsequences : Unsolved Special Integer : Solved Clear the Array : Solved Common Nodes in Two Binary Search Trees : Solved Word Search Board : Unsolved Height of every node in a tree : Solved Subarrays Xor less Than B : Solved Daughters' Ages : Solved Valid phone number : Solved KEEP SWAPPING : Solved Unique Binary Search Trees : Unsolved 4 Sum : Solved Valid Email Address : Unsolved WiFi Routers : Unsolved Number of sextuplets (or six values) th : Unsolved ARRAY_2D : Solved The Sequence game : Unsolved WiFi Routers : Solved Count Delete : Unsolved Distance between Nodes of BST : Solved LOOP_CMPL2 : Solved 0/1 String : Solved Number of Hosts per Subnet : Unsolved Distribute candies : Solved Next Greater Circular Array! : Unsolved Power of 2 : Unsolved REC_CMPL1 : Unsolved Shortest Distance in a graph with two d : Solved Spider's Web : Unsolved BST Iterator : Solved Sorted Array To Balanced BST : Solved Super Array : Solved Minimum Number of Refueling Stops : 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maximum sum of array with no repeating : Solved Reorder List : Solved Count Delete : Solved Find Rectangle in binary matrix : Unsolved Chocolate Distribution : Unsolved Valid Binary Search Tree : Unsolved Dungeon Princess : Solved NESTED_CMPL2 : Solved Maximum Depth : Unsolved Equilateral Triangles using Toothpicks : Solved Distinct Primes : Solved Gray Code : Unsolved Arithmetic operators on Numbers : Solved Hotel Reviews : Solved Genie and Hats : Solved Micro and Lucky Tree : Solved Going back to OS : Solved Good Subarrays : Unsolved Maximum difference between two elements : Unsolved JavaScript Strings : Solved Color of the last ball II : Unsolved World Trips : Solved Arrange Cubes : Solved MultiDimensional Arrays : Unsolved GCD_CMPL : Solved Jelly Beans Jars : Solved Large Factorial : Solved Measure Time by Hourglass : Solved Balanced Parantheses! : Unsolved Next Permutation : Solved Activity Selection : Unsolved Cats and a Square : Solved Thread : Unsolved Maximum Depth : Solved Transpose File : Unsolved Water Flow : Unsolved Equal Array : Solved Check Palindrome! : Solved Add Two Numbers as Lists : Unsolved EDIBLE STRINGS : Solved Make a Statement : Solved Activity Selection : Solved Symmetric Binary Tree : Solved Two Numbers : Solved Diagonal Traversal : Solved LONGEST COMMON SUBSTRING : Unsolved Find Permutation : Unsolved Coins in a Line : Solved CHOOSE3 : Solved Flip Counter : Solved Minimum Number of Refueling Stops : Solved Min Steps in Infinite Grid : Solved Good Subarrays : Solved RECTANGLE SUM : Unsolved Number of sextuplets (or six values) th : Solved Root to Leaf Paths With Sum : Unsolved Container With Most Water : Unsolved Implement StrStr : Unsolved Sum binary tree or not : Solved Helium Balloon : Solved Helium Balloon : Unsolved Good Processor : Unsolved Min Elevator Trips : Unsolved Sort List : Solved Train Station : Solved Quarters on a Table : Solved Divisor Sequences : Solved Divide Gold Bar : Unsolved Validating Email Address using Filter : Solved Movie Character : Unsolved Next Number : Solved World Trips : Unsolved Maximum difference between two elements : Solved Gates of Heaven : Solved Functions - Basic : Unsolved Evaluate Expression To True : Unsolved Ways to make array non decreasing : Unsolved Cross the Bridge II : Solved BALLS IN BOXES : Unsolved Measure Milk by Cans : Solved Binary Tree Paths : Unsolved Max Sum Path in Binary Tree : Unsolved Measure Time by Burning Ropes : Unsolved JavaScript Strings : Unsolved Rook Movement : Unsolved Redundant Braces : Unsolved Merge Two Sorted Lists II : Solved Maximum Sum Triplet : Solved Blindfolded Coin Toss : Unsolved Six Colored Cubes : Unsolved Last Palindromic Date : Solved Subsets II : Unsolved Binary Tree Paths : Solved Roads and Libraries : Unsolved Cats and a Square : Unsolved RECTANGLE SUM : Solved Rain Water Trapped : Unsolved K Largest Elements : Solved Longest path in a subtree : Unsolved Bee Travel : Unsolved Clone Graph : Solved REC_CMPL1 : Solved Smallest sequence with given Primes : Solved LONGEST COMMON SUBSTRING : Solved Loops : Solved Arithmetic operators on Strings : Solved Balanced Binary Tree : Solved Two Numbers : Unsolved Find the Defective Ball II : Unsolved Anagrams : Unsolved Knight On Chess Board : Solved Palindromic Substrings Count : Solved Remove Duplicate Letters : Solved One Mile on the Globe : Solved OSI Model-1 : Solved EZPZ : Solved Deterministic Finite Automaton : Unsolved Deterministic Finite Automaton : Solved Region in BinaryMatrix : Unsolved Spiral Order Matrix I : Solved Snake Ladder Problem! : Solved Byes : Unsolved Reverse Alternate K Nodes : Unsolved Regex in JS : Solved Distinct Initial Matrices : Solved Rook Movement : Solved Minimum cost to connect cities : Unsolved Longest Subarray Length : Unsolved Color of the last ball : Unsolved Majority Element : Unsolved Cross the Bridge II : Unsolved Ants on a Triangle : Unsolved Tiling With Dominoes : Solved Matrix Median : Unsolved BALLS IN BOXES : Solved 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SubArrays : Unsolved Get Mode Array Updates : Unsolved PRODDISC : Unsolved Min Jumps : Unsolved Min Jumps : Solved Flip : Unsolved Reverse pairs : Unsolved Byes : Solved Genie and Hats : Unsolved Grep : Solved NEIGH : Unsolved Largest BST Subtree : Unsolved AMORTIZED1 : Unsolved Prisoners and Poison : Solved Power of 3 : Unsolved Max Chunks To Make Sorted : Solved Longest Increasing Subsequence : Solved Longest Palindromic Subsequence : Unsolved Capture Regions on Board : Unsolved Evaluate Expression : Solved Gcd Ordering : Unsolved The Ghost Type : Unsolved Copy List : Unsolved Substring Concatenation : Solved Build Identical Trees : Solved Tree coloring with three colors : Unsolved Decode String : Unsolved Yet another string operation problem : Unsolved Treasure Hunt : Solved Transform CSV : Unsolved Pairs With Given Xor : Solved IIFE : Solved Input and Output : Solved Equal Tree Partition : Unsolved Palindrome Pairs : Unsolved Maximum level sum : Solved PRODDISC : Solved ARRAY_BUG : Solved Ten Black and White Socks : Unsolved The Ghost Type : Solved Decode String : Solved Node distance C in binary tree : Unsolved Loops : Unsolved Pattern Printing -2 : Unsolved ITS TIME FOR SOME DBMS : Unsolved Stdin and Stdout : Solved Power of 3 : Solved Input and Output : Unsolved Next Number II : Solved Invert the Binary Tree : Solved Modular Expression : Solved Maximum Absolute Difference : Solved Ways to Decode : Solved PRETTYPRINT : Solved Shortest Distance in a Maze : Unsolved Deque : Solved Two out of Three : Unsolved Shortest Distance in a Maze : Solved Highly Consistent Database : Solved Marbles in Jar : Unsolved Ugly Pairs : Unsolved One Mile on the Globe : Unsolved Tree coloring with three colors : Solved Search in a row wise and column wise so : Unsolved Longest Subarray Difference : Solved Sub-matrix Sum Queries : Unsolved Node distance C in binary tree : Solved Combine Maximum : Solved Longest Common Prefix : Unsolved Min Depth of Binary Tree : Solved Ways to color a 3xN Board : Unsolved Are they same - I : Solved Deepu and girlfriend : Unsolved Quarters on a Table : Unsolved Add Binary Strings : Solved Sort array with squares! : Unsolved FRUIT PACKETS : Unsolved Matrix Permutation : Unsolved KEEP SWAPPING 2 : Unsolved Bus and Passenger : Unsolved Ugly Pairs : Solved Pattern Printing -2 : Solved Buffered Reader : Solved Cut the rod : Unsolved Design URL Shortener Max Distance : Unsolved Matrix Search : Unsolved Shortest Distance from All Buildings : Unsolved Minimum Cost to Hire K Workers : Unsolved Datatypes : Solved Single Element in a Sorted Array : Solved Sub-matrix Sum Queries : Solved K DISTANCE : Unsolved Sorted Insert Position : Unsolved Celebrity Problem : Unsolved Identical Binary Trees : Unsolved Solve sub-sequences and return OR : Solved Bus and Passenger : Solved NQueens : Unsolved Balance Array : Unsolved Next Number II : Unsolved Time Based Key-Value Store : Unsolved Marbles in Jar : Solved Design Linked list : Unsolved Bee Travel : Solved Grep Log : Solved Stdin and Stdout : Unsolved NEIGH : Solved Sliding Window Maximum : Solved Palindrome Pairs : Solved Highly Consistent Database : Unsolved Deque : Unsolved Pattern Printing -1 : Unsolved Shortest Distance from All Buildings : Solved Sort List : Unsolved EZPZ : Unsolved CHOOSE1 : Unsolved Symmetric Binary Tree : Unsolved Fastest Horses : Solved Rearrange Array : Solved Validating Roman Numerals : Solved LOOP_CMPL2 : Unsolved Sorted Permutation Rank : Unsolved Count of rectangles with area less than : Solved Ratio of Boys and Girls : Solved Remove Duplicates from Sorted List : Solved MIN MAX RIDDLE : Unsolved NESTED_CMPL3 : Unsolved Variables and Types : Unsolved Kingdom War : Unsolved Dinner Hand Shakes : Unsolved Sum of all Submatrices : Unsolved Left view of binary tree : Unsolved ADD OR NOT : Unsolved Length of longest consecutive ones : Solved Word Break : Unsolved Remove Half Nodes : Solved Grep Log : Unsolved Greatest Common Divisor : Unsolved Deepu and girlfriend : Solved Pattern Printing -1 : Solved Sum of all Submatrices : Solved Find subsequence : Unsolved Jump Statements : Unsolved Design Twitter Merge Intervals : Unsolved Consecutive Numbers Sum : Solved Good Processor : Solved ZigZag Level Order Traversal BT : Solved WINNER NAME : Unsolved Shortest Path in Simple Graph : Solved Tenth Line : Unsolved ADD OR NOT : Solved Preorder Traversal : Unsolved Ratio of Boys and Girls : Unsolved Pairs With Given Xor : Unsolved Best Time to Buy and Sell Stocks I : Unsolved N digit numbers with digit sum S : Solved Divisibility by 8 : Unsolved Sum of pairwise Hamming Distance : Unsolved Trailing Zeroes : Unsolved Count Right Triangles : Unsolved Yet another string operation problem : Solved Letter Phone : Solved Design Cache : Solved Divide the Cake : Unsolved Fake Note : Unsolved Smallest Subarray : Unsolved Lines in a given range : Solved Consecutive Number Sum : Solved Measure Time by Hourglass : Unsolved Eggs and Building : Unsolved Conditions and If-Else : Solved CHOOSE1 : Solved Coins in a Line : Unsolved Justified Text : Unsolved Divide the Cake : Solved Sort by Color : Solved Accessibility : Solved Path in Directed Graph : Unsolved Sum of minimum and maximum elements of : Unsolved MIN MAX RIDDLE : Solved 132 Pattern : Unsolved Actors and their Movies : Solved Stringoholics : Solved Simple Queries : Unsolved Divisibility by 8 : Solved IIFE : Unsolved Compute nCr % m : Unsolved Find Fibonacci : Unsolved WINNER NAME : Solved Maximum Unsorted Subarray : Solved Design Cache : Unsolved Rearrange the array : Unsolved Max Chunks To Make Sorted II : Unsolved Cousins in Binary Tree : Unsolved Swap List Nodes in pairs : Unsolved LEFTOVER : Unsolved LEFTOVER : Solved Find the Defective Ball : Unsolved Atoi : Unsolved Accessibility : Unsolved Sum of divisor of N factorial : Unsolved Coin Sum Infinite : Unsolved Operators : Solved Count Total Set Bits : Solved Nearest Smaller Element : Solved Try some SQL : Unsolved GCD_CMPL : Unsolved Sharding a Database : Solved All Unique Permutations : Unsolved Swap List Nodes in pairs : Solved Conditions and If-Else : Unsolved Set Matrix Zeros : Solved Compute nCr % m : Solved BST nodes in a range : Unsolved Validating Phone Numbers : Solved Subarray Sum Equals K : Unsolved Order them : Unsolved Count the primes : Unsolved List Cycle : Solved Stairs : Solved Parity Queries : Unsolved Count Right Triangles : Solved Water Flow : Solved Intersecting Chords in a Circle : Unsolved MinimiZe : Solved Commutable Islands : Solved Binary Representation : Solved First non-repeating character in a stre : Unsolved ITS TIME FOR SOME DBMS : Solved 132 Pattern : Solved Mod Sum : Unsolved Rearrange the array : Solved Regex in JS : Unsolved Max Rectangle in Binary Matrix : Solved Best Time to Buy and Sell Stock with Co : Unsolved Path Sum : Unsolved Binary Representation : Unsolved Maximum array sum after B negations : Unsolved Single Number II : Solved Kth Permutation Sequence : Solved 3 Length Paths : Solved Remove the Substring : Unsolved Longest Subarray Difference : Unsolved Patch the tire : Solved Design Search Typeahead Reverse Bits : Solved Sharding a Database : Unsolved Seats : Solved ODD SUM : Unsolved Minimum Paratheses! : Unsolved N/3 Repeat Number : Solved Order them : Solved Try some SQL : Solved Similar Pairs : Unsolved MODIFIED SEARCH : Unsolved Check two bracket expressions : Solved K DISTANCE : Solved Ways to form Max Heap : Solved Maximum array sum after B negations : Solved Minimum Paratheses! : Solved Find the Defective Ball : Solved Maximum Size Square Sub-matrix : Solved Valid Sudoku : Unsolved Sum of divisor of N factorial : Solved ODD SUM : Solved REC_CMPL2 : Unsolved Something on IP's : Unsolved Best Time to Buy and Sell Stock with Co : Solved 100 People in a Circle : Solved Parity Queries : Solved Subarray Sum Equals K : Solved Sort by Frequency : Unsolved Design URL Shortener : Solved Compute nCr % p : Unsolved Min Jumps Array : Solved JAVASCRIPT TAG : Solved JAVASCRIPT TAG : Unsolved Level Order : Unsolved Number of 1 Bits : Solved Minimum operations of given type to mak : Unsolved Mod Sum : Solved MinimiZe : Unsolved Maximal String : Solved SUBTRACT : Unsolved The Sequence game : Solved Finding Position : Solved 2-Sum Binary Tree : Solved The Tribe : Unsolved MAXSPPROD : Solved Wizards and Drawves : Solved CHOOSE2 : Solved Design URL Shortener : Unsolved Steps to get out of complete binary tre : Unsolved Maximum Rectangle : Unsolved Find duplicate rows in a binary matrix : Solved Prime Subarrays : Unsolved Prime Subarrays : Solved Compute nCr % p : Solved Find subsequence : Solved Difference between odd and even level : Unsolved GREEDY PICK : Unsolved Bitwise AND Sum : Unsolved 3 Length Paths : Unsolved Wave Array : Solved Breaking Chocolate Bars : Solved Convert the amount in number to words : Solved Light Switches in the Cellar : Unsolved Array and Prime Divisors : Unsolved Construct Binary Tree From Inorder And : Unsolved MODIFIED SEARCH : Solved Divide Integers : Unsolved REMOVE DUPLICATES : Unsolved Classes : Solved Grep : Unsolved Smallest Subarray : Solved Loops- Java : Solved Next Smallest Palindrome! : Solved Best Time to Buy and Sell Stock with Tr : Unsolved Delete Edge! : Unsolved Rotated Arrays : Unsolved Color of the last ball : Solved Grid Unique Paths : Unsolved Six Colored Cubes : Solved Hotel Reviews : Unsolved Starting indices of the substrings in s : Solved Into Blocks : Unsolved Balanced Brackets Queries : Unsolved Max Chunks To Make Sorted II : Solved Array and Prime Divisors : Solved Recover Binary Search Tree : Solved Maximum Rectangle : Solved Random Attendance : Unsolved LOOP_CMPL : Unsolved Highest Product : Unsolved Into Blocks : Solved GREEDY PICK : Solved Another chocolate game : Solved REMOVE DUPLICATES : Solved Insertion Sort List : Unsolved Excel Column Number : Unsolved WHILE_CMPL : Unsolved Coin Sum Infinite : Solved Common Nodes in Two Binary Search Trees : Unsolved Largest Number : Solved Build Identical Trees : Unsolved Repeat and Missing Number Array : Solved Remove K Digits : Unsolved Bitwise AND Sum : Solved Longest Common Prefix II : Solved Distinct Numbers in Window : Unsolved Something on IP's : Solved Difference between odd and even level : Solved Convert Integer To Roman Number : Solved Number of Squareful Arrays : Solved Jelly Beans Jars : Unsolved Convert the amount in number to words : Unsolved Reverse Linked List : Solved Matrix Permutation : Solved Min Jumps Array : Unsolved Fraction : Solved Diagonal Traversal : Unsolved Inorder Traversal of Cartesian Tree : Solved Best Time to Buy and Sell Stock with Tr : Solved TOP VIEW : Solved Loops- Java : Unsolved Remove K Digits : Solved Random Attendance : Solved Maximum Frequency stack : Unsolved Balanced Brackets Queries : Solved Diameter of Binary Tree : Unsolved Merge elements : Unsolved Fake Note : Solved Maximum Longest Common Subsequence : Unsolved Maximum Longest Common Subsequence : Solved Vowels : Solved Get Mode Array Updates : Solved Longest Common Prefix II : Unsolved Anagram Substring Search : Unsolved Valid Path : Solved Maximum Sum Square SubMatrix : Solved Merge K Sorted Lists : Unsolved Diffk II : Solved Rotated Arrays : Solved Ways to Decode : Unsolved Functions - Basic : Solved K-th character of decrypted string : Solved Least Common Ancestor : Unsolved Longest Increasing Subsequence : Unsolved Spinning Disc's Direction : Solved Sorted Insert Position : Solved Swap Forward And Backward Slash : Unsolved Largest Permutation : Unsolved Heater and Houses : Unsolved Add Binary Strings : Unsolved Merge Two BSTs : Unsolved First Scheduler : Unsolved Arrays in JS : Unsolved Diameter of Binary Tree : Solved Measure Time by Burning Ropes : Solved B XOR : Unsolved Substring Concatenation : Unsolved Pascal Triangle : Unsolved Anagram Substring Search : Solved Remove Punctuations : Unsolved Largest area of rectangle with permutat : Unsolved Sort an array according to the order de : Unsolved Equal : Solved Count Permutations of BST : Solved Count of pairs with the given sum II : Unsolved ARRAY_BUG : Unsolved Valid Ip Addresses : Solved Pick from both sides! : Solved Distribute in Circle! : Unsolved LRU Cache : Unsolved Methods - Java : Solved Next Greater Number BST : Unsolved ARRAY_IMPL1 : Solved Maximum coin in a tree : Unsolved Make a Statement : Unsolved Sort by Frequency : Solved Maximum Frequency stack : Solved Count the primes : Solved 100 People in a Circle : Unsolved Spider's Web : Solved B XOR : Solved Increasing Path in Matrix : Unsolved Maximum Consecutive Gap : Solved Count of pairs with the given sum II : Solved Scores : Unsolved Single Element in a Sorted Array : Unsolved Reduce the string : Unsolved The square game : Unsolved Sort an array according to the order de : Solved Merge Two BSTs : Solved Aggressive cows : Solved Grid Paths : Unsolved Minimum Swaps 2 : Solved Reverse pairs : Solved Three Numbers : Solved Kingdom War : Solved Ways to color a 3xN Board : Solved Subarray with equal occurences! : Unsolved First Scheduler : Solved Find duplicate rows in a binary matrix : Unsolved Heater and Houses : Solved Substring Game : Unsolved Allied Nations' Tour : Unsolved Reverse integer : Unsolved Train Station : Unsolved Lines in a given range : Unsolved Word Ladder II : Unsolved The square game : Solved Basic Array Methods : Solved SUMMATION : Unsolved SUMMATION : Solved Rain Water Trapped : Solved Design Search Typeahead : Solved Box Stacking Problem : Unsolved Methods - Java : Unsolved Maximum Product Increasing Subsequence : Unsolved Longest Palindromic Subsequence : Solved Next Pointer Binary Tree : Unsolved Validating Email Address using Filter : Unsolved Shortest Unique Prefix : Unsolved Check divisibility by 7 : Unsolved REVERSE OR NOT : Unsolved Smallest Good Base : Unsolved Insertion Sort List : Solved Check Palindrome! : Unsolved Reverse Level Order : Solved Equal Average Partition : Unsolved Basic Array Methods : Unsolved Delete and Conquer : Unsolved Tushar's Birthday Bombs : Unsolved Maximum coin in a tree : Solved Check divisibility by 7 : Solved Too Odd to be a Palindrome : Unsolved Longest Subarray Sum B : Unsolved Longest Arithmetic Progression : Solved In an array : Unsolved Task Scheduler : Unsolved Allied Nations' Tour : Solved Request X Chocolates : Unsolved Design Search Typeahead : Unsolved Median of stream of running integers : Solved Duplicates in binary tree : Solved Queries On A Tree : Unsolved Remove Punctuations : Solved Count of paths in a grid : Solved Boundary Traversal Of Binary Tree : Unsolved Leaf nodes from Preorder of a Binary Se : Solved N max pair combinations : Solved Hotel Bookings Possible : Solved LCA of array : Unsolved Too Odd to be a Palindrome : Solved Queen Attack : Solved Tiling Problem : Unsolved Delete and Conquer : Solved Greatest Common Divisor : Solved Step by Step : Unsolved Travelling Saleman Problem : Solved Counting Special Numbers! : Unsolved Bob and Queries : Unsolved REVERSE OR NOT : Solved Paint House! : Unsolved Number Of Open Doors : Solved Smallest Good Base : Solved Falling Squares : Solved 3 Numbers : Unsolved Array 3 Pointers : Solved Function : Unsolved Smallest XOR Queries : Unsolved Maximal String : Unsolved Queries On A Tree : Solved Design Twitter : Solved Bribing was never Easy! : Unsolved Gas Station : Solved Required Substrings : Unsolved Word Ladder II : Solved Points on the Straight Line : Solved Delete Edge! : Solved Merge Two Sorted Lists : Unsolved Palindrome Integer : Unsolved Rotate List : Unsolved Two teams? : Solved Daughters' Ages : Unsolved Reduce the string : Solved Colorful Number : Solved First Missing Integer : Solved Substring Game : Solved Design Twitter : Unsolved Type Conversion : Unsolved Intersection of Two Lines : Unsolved Merge K sorted arrays! : Unsolved Find sub-array with the given sum : Unsolved TOP VIEW : Unsolved Unique Binary Search Trees : Solved Maximum Product Increasing Subsequence : Solved Bob and Queries : Solved 3 Numbers : Solved Sum of adjacent elements is always even : Unsolved Bribing was never Easy! : Solved Request X Chocolates : Solved Function : Solved B-th Smallest Prime Fraction : Unsolved Tiling Problem : Solved Very Hard Queries : Unsolved Kth Node From Middle : Solved In an array : Solved Tenth Line : Solved Short Films : Solved Counting Special Numbers! : Solved Intersection of Two Lines : Solved Rotated Array : Solved Rearrange Array : Unsolved Carotenemia : Unsolved K reverse linked list : Solved Carotenemia : Solved Required Substrings : Solved Total Moves For Bishop! : Unsolved Smallest XOR Queries : Solved Wave Array : Unsolved Remove Consecutive Characters : Solved Find Fibonacci : Solved Check if each internal node of a BST ha : Unsolved Allocate Books : Unsolved SUBTRACT : Solved Highly Available Database : Solved Count of pairs with the given sum : Solved Min Steps in Infinite Grid : Unsolved Remove Element from Array : Unsolved Difference of Candies : Unsolved LCA of array : Solved Reverse the String : Unsolved Roads and Libraries : Solved Max Distance : Solved Highly Available Database : Unsolved Minimum Parantheses! : Unsolved Breaking Chocolate Bars : Unsolved Minimum Bracket Reversals : Solved Medicine Chest on a Boat : Solved All Factors : Unsolved Size three subsequences divisible by B : Solved CHOOSE4 : Solved Simplify Directory Path : Solved Min XOR value : Unsolved Highly Consistent Database Design Linked list : Solved Floyd Warshall Algorithm : Unsolved Difference between odd and even levels : Unsolved Valid Number : Solved Multiplication of previous and next : Unsolved Convert to Palindrome : Solved Find sub-array with the given sum : Solved Produce the number : Unsolved Difference of Candies : Solved Two teams? : Unsolved Add One To Number : Solved Grid Paths : Solved Vertical Order traversal of Binary Tree : Solved Produce the number : Solved Next 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Remove Duplicates from Sorted Array II : Unsolved Max Rectangle in Binary Matrix : Unsolved Duplicates in binary tree : Unsolved Min Sum Path in Triangle : Unsolved Length of longest palindromic list : Unsolved Move all zeroes to end of the array : Unsolved NESTED_CMPL2 : Unsolved Falling Dominoes : Solved Max Continuous Series of 1s : Unsolved Find the closest pair from two sorted a : Solved Difference between odd and even levels : Solved Remove Duplicate Letters : Unsolved String representation using its substri : Unsolved Find The Next : Unsolved Longest Consecutive Sequence in Binary : Solved Dijsktra : Unsolved Number of Squareful Arrays : Unsolved Unique Paths III : Unsolved Longest Pallindromic Subsequence : Unsolved Count Palindromic Subsequences : Unsolved Delete middle node of a Linked List : Solved Check if each internal node of a BST ha : Solved 1D Array - Java : Unsolved Min Elevator Trips : Solved Merge Two Sorted Arrays : Unsolved Verify Prime : Solved BST nodes in a range : Solved Unique Paths in a Grid : Unsolved Color of the Bear : Unsolved Find nth Magic Number : Unsolved Sum Of Fibonacci Numbers : Solved Smallest Missing Sum! : Solved Finding Position : Unsolved Steps to get out of complete binary tre : Solved INFINITE STRING : Unsolved 0/1 String : Unsolved Similar Pairs : Solved Expected number of Segments : Solved Monkeys and Doors : Solved Swap Forward And Backward Slash : Solved Cows and snacks : Unsolved Dijsktra : Solved Day of the week : Unsolved Unique Paths III : Solved FRUIT PACKETS : Solved Longest Pallindromic Subsequence : Solved Falling Dominoes : Unsolved Minimum Cost to Hire K Workers : Solved Detect and Remove Loop from a linked li : Unsolved B Closest Points to Origin : Solved Sliding Window Maximum : Unsolved Number of Digit One : Unsolved Equal Tree Partition : Solved Deserialize Binary Tree : Unsolved CHOOSE2 : Unsolved Repeat and Missing Number Array : Unsolved Maximum height of the staircase : Unsolved Maximum height of 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