Here Are the Solutions of the POTD & other problems in GFG
Day 1(14 JAN) : Find duplicate rows in a binary matrix
Day 2(15 JAN) : Grinding Geek
Day 3(16 JAN) : Sequence of Sequence
Day 4(17 JAN) : All Unique Permutations of an array
Day 5(18 JAN) : Water the plants
Day 6(19 JAN) : Top k numbers in a stream
Day 7(20 JAN) : Distribute candies in a binary tree
Day 8(21 JAN) : Vertex Cover
Day 9(22 JAN) : Paths from root with a specified sum
Day 10(23 JAN) : Course Schedule
Day 11(24 JAN) : Check if a given graph is tree or not
Day 12(25 JAN) : Shortest Prime Path
Day 13(26 JAN) : Fractional Knapsack
Day 14(27 JAN) : Brackets in Matrix Chain Multiplication
Day 15(28 JAN) : Geekina Hate 1s
Day 16(29 JAN) : Count digit groupings of a number
Day 17(30 JAN) : LCS of three strings
Day 18(31 JAN) : Insert and Search in a Trie
Day 19(1 FEB) : Panagram Checking
Day 20(2 FEB) : Implement Atoi
Day 21(3 FEB) : Decimal Equivalent of Binary Linked List
Day 22(4 FEB) : Subtraction in Linked List
Day 23(5 FEB) : Sorted insert for circular linked list
Day 24(6 FEB) : Node at distance
Day 25(7 FEB) : Min distance between two given nodes of a Binary Tree
Day 26(8 FEB) : Check if all leaves are at same level
Day 27(9 FEB) : Check for Children Sum Property in a Binary Tree
Day 28(10 FEB) : Number of paths in a matrix with k coins
Day 29(11 FEB) : Recamans sequence
Day 30(12 FEB) : Recursive sequence
Day 31(13 FEB) : Clone an Undirected Graph
Day 32(14 FEB) : Find all Critical Connections in the Graph
Day 33(15 FEB) : Count all Possible Path
Day 34(16 FEB) : Flatten BST to sorted list
Day 35(17 FEB) : Does array represent Heap
Day 36(18 FEB) : Sum of leaf nodes in BST
Day 37(19 FEB) : Game with String
Day 38(20 FEB) : Word Break
Day 39(21 FEB) : Boolean Parenthesization
Day 40(22 FEB) : Distinct occurrences
Day 41(23 FEB) : Buy and Sell a Share at most twice
Day 42(24 FEB) : Maximum Sum Problem
Day 43(25 FEB) : Reach a given score
Day 44(26 FEB) : Power Set
Day 45(27 FEB) : Play With OR
Day 46(28 FEB) : Check if a number is divisible by 8
Day 47(29 FEB) : Sum of bit differences
Day 48(03 MAR) : Largest Number formed from an Array
Day 49(04 MAR) : Swap the array elements
Day 50(05 MAR) : Maximum Index
Day 51(06 MAR) : Search Pattern (Rabin-Karp Algorithm)
Day 52(07 MAR) : Longest repeating and non-overlapping substring
Day 53(08 MAR) : Check if frequencies can be equal
Day 54(09 MAR) : Find the N-th character
Day 55(10 MAR) : Remove all duplicates from a given string
Day 56(11 MAR) : Count pairs Sum in matrices
Day 57(12 MAR) : Generalised Fibonacci numbers
Day 58(13 MAR) : Print matrix in diagonal pattern
Day 59(14 MAR) : Largest subsquare surrounded by X
Day 60(15 MAR) : Linked List that is Sorted Alternatingly
Day 61(16 MAR) : Delete without head pointer
Day 62(17 MAR) : Count Pairs whose sum is equal to X
Day 63(18 MAR) : Level order traversal
Day 64(19 MAR) : Possible Paths in a Tree
Day 65(20 MAR) : Sum of nodes on the longest path from root to leaf node
Day 66(21 MAR) : ZigZag Tree Traversal
Day 67(22 MAR) : Diagonal sum in binary tree
Day 68(23 MAR) : Fibonacci series up to Nth term
Day 69(24 MAR) : Insert an Element at the Bottom of a Stack
Day 70(25 MAR) : Print N-bit binary numbers having more 1s than 0s
Day 71(26 MAR) : Additive sequence
Day 72(27 MAR) : Find shortest safe route in a matrix
Day 73(28 MAR) : City With the Smallest Number of Neighbors at a Threshold Distance
Day 74(29 MAR) : Euler Circuit in an Undirected Graph
Day 75(30 MAR) : Minimum element in BST
Day 76(31 MAR) : Closest Neighbour in BST
Day 77(1 APR) : Pairs violating the BST property
Day 78(2 APR) : Minimum Absolute Difference In BST
Day 79(3 APR) : Kth common ancestor in BST
Day 80(4 APR) : Sum of all substrings of a number
Day 81(5 APR) : Strictly Increasing Array
Day 82(6 APR) : Count ways to N'th Stair
Day 83(7 APR) : Maximize dot product
Day 84(8 APR) : Optimal Strategy For A Game
Day 85(9 APR) : Minimum Points To Reach Destination
Day 86(10 APR) : Party of Couples
Day 87(11 APR) : Gray to Binary equivalent
Day 88(12 APR) : Sum of Products
Day 89(13 APR) : Reverse Bits
Day 90(14 APR) : Xoring and Clearing
Day 91(15 APR) : Count the elements
Day 92(16 APR) : Minimize the Difference
Day 93(17 APR) : Count Pairs in an Array
Day 94(18 APR) : Smallest String Starting From Leaf
Day 95(19 APR) : Find missing in second array
Day 96(20 APR) : Union of Two Sorted Arrays
Day 97(21 APR) : Three way partitioning
Day 98(22 APR) : Row with minimum number of 1's
Day 99(23 APR) : Rohan's Love for Matrix
Day 100(24 APR) : Paths to reach origin
Day 101(25 APR) : Maximum sum of hour glass
Day 102(26 APR) : Exit Point in a Matrix
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