| Check If Two String Arrays are Equivalent Problem |
Easy
|
|
|
| Minimum Remove to Make Valid Parentheses |
Medium
|
amazon
bloomberg
bytedance
facebook
google
microsoft
|
|
| Serialize and Deserialize N-Ary Tree |
Hard
|
amazon
apple
ebay
facebook
google
linkedin
microsoft
pinterest
uber
|
|
| Minimum Interval to Include Each Query |
Hard
|
|
|
| Median of Two Sorted Array of Equal or Same Size |
Medium
|
|
|
| 4Sum - Output in Sorted Order |
|
|
|
| 4Sum 2 - 4 Different Arrays |
Medium
|
apple
|
|
| Remove Covered Intervals |
Medium
|
amazon
|
|
| Longest Happy String Problem |
Medium
|
amazon
wayfair
|
|
| Find minimum difference Element in sorted array |
|
|
|
| Open the Lock Problem |
Medium
|
amazon
bloomberg
facebook
google
uber
|
|
| Partition Labels Problem |
Medium
|
amazon
apple
facebook
|
|
| Trim a Binary Search Tree BST |
Medium
|
adobe
amazon
apple
bloomberg
facebook
google
microsoft
yahoo
|
|
| Flatten Binary Tree to Linked List in Order of Preorder Traversal |
Medium
|
adobe
amazon
apple
bloomberg
bytedance
coupang
databricks
facebook
google
microsoft
nvidia
oracle
uber
yahoo
|
|
| Merge Triplets to Form Target Triplet |
Medium
|
|
|
| Encode and Decode TinyURL Problem |
Medium
|
adobe
amazon
bloomberg
facebook
google
microsoft
oracle
uber
|
|
| Flip Equivalent Binary Trees Problem |
Medium
|
amazon
ebay
google
|
|
| Eliminate Maximum Number of Monsters |
Medium
|
|
|
| Unique Length-3 Palindromic Subsequences |
Medium
|
|
|
| Check if Intervals Overlap |
Easy
|
|
|
| Decode String Problem |
Medium
|
alibaba
amazon
appdynamics
apple
atlassian
bloomberg
bytedance
cisco
coupang
cruise-automation
ebay
facebook
google
huawei
hulu
microsoft
oracle
salesforce
snapchat
tencent
vmware
yahoo
yelp
|
|
| Frequency of the Most Frequent Element |
Medium
|
|
|
| Run-length Encoding |
Easy
|
amazon
|
|
| Rotate an Array to Left |
Medium
|
facebook
|
|
| Partition Equal Subset Sum |
Medium
|
amazon
apple
ebay
facebook
google
microsoft
paypal
uber
vmware
yahoo
|
|
| Find last position of target element in sorted array |
|
|
|
| Minimum Number of Swaps to Make the String Balanced Problem |
Medium
|
|
|
| Anagram Definition |
|
|
|
| Maximum Intervals Overlap Count |
Medium
|
snapchat
|
|
| Linked List Cycle 4 - Delete cycle |
Medium
|
|
|
| Find if Path Exists in Directed Graph Problem |
Easy
|
|
|
| Find if Path Exists in Graph Problem |
Easy
|
|
|
| Convert BST to Greater Sum Tree |
Medium
|
amazon
apple
microsoft
uber
|
|
| Explain x & (-x) |
|
|
|
| Palindrome Definition |
|
|
|
| Ugly Number Definition |
|
|
|
| Remove duplicate characters in a string |
|
|
|
| Check if given array is Palindrome OR Not |
|
|
|
| Expression Tree Definition |
|
|
|
| Longest Absolute File Path Problem |
Medium
|
amazon
apple
facebook
google
uber
wish
|
|
| Find index k in boolean matrix where kth row has all 0s and kth column has all 1s |
|
|
|
| Sorting a Stack using push,pop,isEmpty and peek |
|
|
|
| Implement 3 stacks in 1 array |
Medium
|
|
|
| Implement insertion sort with stacks |
|
|
|
| Order-agnostic Binary Search on Sorted Array |
|
|
|
| Unique BSTs 3 - Count given node keys between m and n |
|
|
|
| Check if an Array of Integers is Sorted |
|
|
|
| Count frequency of target element in sorted array |
|
|
|
| Count number of bits to be flipped to convert A to B |
Easy
|
|
|
| Determine if a string has all unique characters |
|
|
|