Featured Lists Top 20 Problems on Dynamic programming Top 10 Problems on Backtracking Top 20 Problems on Graph Top 25 Problems on Trees Top 10 Problems on Bits Manipulation Top 15 Problems in LinkedList All Problems # Status Problem video Level Completes Likes 222 Maximum Subarray OR Largest Sum Contiguous Subarray Problem – Divide and Conquer Hard % 0 220 Find the right most unset bit OR zero bit of a number Beginner % 1 219 Find the two repeating elements in a given array | 6 Approaches Medium % 1 218 Find the right most set bit of a number Beginner % 1 217 Find two elements whose sum is closest to zero Medium % 1 212 Find the first non repeating character in a given string Beginner % 0 211 Find the first repeating character in a given string Beginner % 0 205 Print All Diagonals of a given matrix Medium % 1 203 Dynamic Programming - Coin In a Line Game Problem Hard % 0 202 Dynamic Programming - Box Stacking Problem Hard % 0 200 Dynamic Programming - Highway Billboard Problem Hard % 0 190 Swap Nodes in pairs in a Linked List by changing links Medium % 0 187 Reverse Alternative 'k' nodes in a Linked List. Medium % 0 186 Reverse a Linked List in groups of given size 'K' Medium % 0 182 Binary Tree-Postorder Traversal - Non Recursive Approach Beginner % 0 181 Binary Tree - Preorder Traversal - Non Recursive Approach Beginner % 0 180 Binary Tree-Inorder Traversal - Non Recursive Approach Beginner % 0 179 Binary Tree Deletion Beginner % 0 176 Find the Size of a Binary Tree without Recursion Beginner % 0 173 Minimize Square Sums: Fewest Perfect Squares to Reach a Target (Dynamic Programming) Hard % 0 172 Dynamic Programming - Longest Common Substring Medium % 0 171 Dynamic Programming - Longest Common Subsequence Medium % 0 165 Generate all combinations of length N Hard % 0 164 Print All Possible Subsets with Sum equal to a given Number Hard % 0 162 Dynamic Programming - Subset Sum Problem Hard % 0 161 The Word Break Problem Hard % 0 159 Solve the Knight's Tour with Backtracking Hard % 0 158 Backtracking - Search a Word In a Matrix Hard % 0 157 Backtracking - N Queens Problem - Better Solution Hard % 0 153 Find the Second Largest Element in an Array Beginner % 1 148 Solve Sudoku Puzzles with Backtracking Hard % 0 147 Introduction To Backtracking Programming Beginner % 0 143 Merge K Sorted Arrays Hard % 0 141 Find the Single Occurrence Element in an Array (Odd One Out) Beginner % 1 139 Find Missing Numbers in Sequences - XOR Method Beginner % 1 Maximum Subarray OR Largest Sum Contiguous Subarray Problem – Divide and Conquer Find the right most unset bit OR zero bit of a number Find the two repeating elements in a given array | 6 Approaches Find the right most set bit of a number Find two elements whose sum is closest to zero Find the first non repeating character in a given string Find the first repeating character in a given string Print All Diagonals of a given matrix Dynamic Programming - Coin In a Line Game Problem Dynamic Programming - Box Stacking Problem Dynamic Programming - Highway Billboard Problem Swap Nodes in pairs in a Linked List by changing links Reverse Alternative 'k' nodes in a Linked List. Reverse a Linked List in groups of given size 'K' Binary Tree-Postorder Traversal - Non Recursive Approach Binary Tree - Preorder Traversal - Non Recursive Approach Binary Tree-Inorder Traversal - Non Recursive Approach Binary Tree Deletion Find the Size of a Binary Tree without Recursion Minimize Square Sums: Fewest Perfect Squares to Reach a Target (Dynamic Programming) Dynamic Programming - Longest Common Substring Dynamic Programming - Longest Common Subsequence Generate all combinations of length N Print All Possible Subsets with Sum equal to a given Number Dynamic Programming - Subset Sum Problem The Word Break Problem Solve the Knight's Tour with Backtracking Backtracking - Search a Word In a Matrix Backtracking - N Queens Problem - Better Solution Find the Second Largest Element in an Array Solve Sudoku Puzzles with Backtracking Introduction To Backtracking Programming Merge K Sorted Arrays Find the Single Occurrence Element in an Array (Odd One Out) Find Missing Numbers in Sequences - XOR Method 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
