Title Difficulty Companies Videos
Flip Equivalent Binary Trees Problem Medium amazon ebay google
Eliminate Maximum Number of Monsters Medium
Unique Length-3 Palindromic Subsequences Medium
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
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 Medium
Minimum Number of Swaps to Make the String Balanced Problem Medium
Maximum Intervals Overlap Count Medium snapchat
Linked List Cycle 4 - Delete cycle Medium
Convert BST to Greater Sum Tree Medium amazon apple microsoft uber
Remove duplicate characters in a string Medium
Check if given array is Palindrome OR Not Medium
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 Medium
Sorting a Stack using push,pop,isEmpty and peek Medium
Implement 3 stacks in 1 array Medium
Implement insertion sort with stacks Medium
Order-agnostic Binary Search on Sorted Array Medium
Unique BSTs 3 - Count given node keys between m and n Medium
Count frequency of target element in sorted array Medium
Determine if a string has all unique characters Medium
Find floor of target element in a sorted array Medium
Find the nearest numbers that have same number of 1s for an integer Medium
Implement selection sort on stack Medium
List Combinations - Generate unique combinations from list selecting 1 element from each Medium
Longest Substring with K distinct characters Medium google
Replace all spaces in c-style string with '%20' Medium
Set all bits of a number in a range equal to another number Medium
Swap odd and even bits in an integer Medium cisco
Find Common Elements in Two Sorted Linked Lists Medium
Find last modular node in linked list for given k Medium
Check if the length of a linked list is even or odd Medium
Count Cells in Overlapping Horizontal and Vertical Substrings Medium
Count Special Subsequences Medium
Design a 3D Binary Matrix with Efficient Layer Tracking Medium
Design Task Manager Medium
Digit Operations to Make Two Integers Equal Medium
DNA Pattern Recognition Medium
Eat Pizzas! Medium
Find Minimum Cost to Remove Array Elements Medium
Find Mirror Score of a String Medium
Find Product Recommendation Pairs Medium
Find Students Who Improved Medium
Find the Most Common Response Medium
Find the Number of Copy Arrays Medium
Find X Value of Array I Medium
Fruits Into Baskets III Medium
Implement Router Medium