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Check if target word exists in matrix horizontally or vertically
easy
-
microsoft
Expected number of rounds to reach one remaining coin
easy
-
microsoft
Find if there is a path between two vertices in a directed graph
easy
-
google
facebook
amazon
+1 more
Find the Index of the First Occurrence in a String
easy
-
adobe
amazon
apple
+13 more
Implement stack using priority queue
easy
-
adobe
microsoft
amazon
Two Sum
easy
adobe
aetion
affirm
+69 more
Palindrome Number
easy
adobe
amazon
apple
+8 more
Roman To Integer
easy
adobe
amazon
apple
+11 more
Longest Common Prefix in array of string
easy
-
adobe
alibaba
amazon
+17 more
Valid Parentheses
easy
adobe
airbnb
akuna-capital
+49 more
Merge Two Sorted Linked Lists
easy
adobe
airbnb
alibaba
+26 more
Nth Number with sum of digits as 10
easy
-
microsoft
Read N characters given read7
easy
-
microsoft
Remove duplicates from Sorted Array 1
easy
adobe
amazon
apple
+12 more
Remove Element
easy
amazon
bloomberg
google
+1 more
Search Insert Position in sorted array
easy
-
adobe
amazon
apple
+4 more
Transitive Closure of a Graph
easy
-
microsoft
Add Binary Strings
easy
-
adobe
amazon
apple
+4 more
Square root of an integer
easy
-
amazon
apple
bloomberg
+9 more
Climbing Stairs - Take atmost 2 Steps
easy
adobe
alibaba
amazon
+15 more
Remove duplicates from Sorted List 1
easy
adobe
amazon
apple
+6 more
Merge Two Sorted Arrays
easy
-
adobe
amazon
apple
+22 more
Binary Tree Inorder Traversal
easy
-
alibaba
amazon
apple
+8 more
Same Tree
easy
amazon
apple
bloomberg
+4 more
Symmetric Binary Tree
easy
-
adobe
alibaba
amazon
+17 more
Maximum Depth of Binary Tree
easy
adobe
amazon
apple
+11 more
Convert Sorted Array to height-balanced Binary Search Tree
easy
airbnb
amazon
apple
+7 more
Balanced Binary Tree
easy
-
adobe
amazon
apple
+7 more
Minimum Depth of Binary Tree
easy
-
amazon
apple
facebook
+1 more
Path Sum 1 - Check if root to leaf path exists
easy
-
adobe
amazon
apple
+6 more
Pascal’s Triangle 1 - Generate first n rows
easy
-
adobe
amazon
apple
+7 more
Best Time To Buy And Sell Stock 1 - only one transaction
easy
adobe
akuna-capital
alibaba
+35 more
Valid Palindrome
easy
adobe
amazon
apple
+14 more
Single Number 1 - All elements except one occur twice
easy
adobe
airbnb
amazon
+9 more
Linked List Cycle 1 - Detect Cycle
easy
adobe
amazon
apple
+11 more
Binary Tree Preorder Traversal
easy
-
amazon
bloomberg
cisco
+2 more
Intersection of Two Linked Lists
easy
-
airbnb
alibaba
amazon
+19 more
Excel Sheet Column Title
easy
-
adobe
apple
facebook
+5 more
Majority Element - Boyer–Moore majority vote algorithm
easy
-
adobe
amazon
apple
+8 more
Majority Element 1 - with n by 2 definition
easy
-
facebook
google
microsoft
+1 more
Excel Sheet Column Number
easy
-
amazon
apple
bloomberg
+6 more
Number of 1 Bits
easy
2
adobe
amazon
apple
+6 more
Happy Number
easy
-
adobe
airbnb
amazon
+13 more
Remove Linked List Elements
easy
-
adobe
amazon
apple
+8 more
Isomorphic Strings
easy
adobe
amazon
bloomberg
+8 more
Reverse Linked List
easy
adobe
alibaba
amazon
+31 more
Contains Duplicate 1 - Check if array has duplicates
easy
adobe
airbnb
amazon
+7 more
Contains Duplicate 2 - within k distance
easy
-
adobe
airbnb
amazon
+5 more
Count Complete Tree Nodes
easy
-
amazon
bloomberg
bytedance
+4 more
Implement stack using queues
easy
-
amazon
bloomberg
citadel
+5 more
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