MR Logo MR CodeBlocks
Login

// practice ground

Problems

# Title Topics Difficulty
76 Permutations
Backtracking Recursion
Medium
77 Subsets
Backtracking Recursion
Medium
78 Combination Sum
Backtracking Recursion
Medium
79 Maximum Depth of Binary Tree
Recursion Trees
Easy
80 Binary Tree Inorder Traversal
Recursion Stacks Trees
Easy
81 Symmetric Tree
Recursion Trees
Easy
82 Diameter of Binary Tree
Recursion Trees
Medium
83 Binary Tree Level Order Traversal
Queues Trees
Medium
84 Invert Binary Tree
Recursion Trees
Easy
85 Validate Binary Search Tree
Binary Search Tree Recursion Trees
Medium
86 Insert into a Binary Search Tree
Binary Search Tree Recursion Trees
Medium
87 Lowest Common Ancestor of a BST
Binary Search Tree Recursion Trees
Medium
88 Jump Game
Arrays Dynamic Programming Greedy
Medium
89 Gas Station
Arrays Greedy
Medium
90 Assign Cookies
Greedy Sorting
Easy
91 Distance Between Two Points
Geometry Math
Easy
92 Area of a Triangle Given Vertices
Geometry Math
Easy
93 Fast Exponentiation
Divide and Conquer Math Number Theory
Medium
94 Merge Sort
Divide and Conquer Sorting
Medium
95 Implement Trie (Insert and Search)
Strings Trie
Medium
96 Count Words With a Given Prefix
Strings Trie
Medium
97 Number of Connected Components
Graphs Union Find (Disjoint Set)
Medium
98 Redundant Connection
Graphs Union Find (Disjoint Set)
Medium
99 Min Stack
Design Stacks
Medium
100 Design a Stack With Increment Operation
Arrays Design Stacks
Medium
Showing 76–100 of 100
Prev 2 3 4