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Computer Science
Problems
Title
Difficulty
Companies
Videos
Count Number of Bad Pairs
Medium
Design a Number Container System
Medium
Find the Number of Distinct Colors Among the Balls
Medium
Length of the Longest Consecutive 1s in Binary Representation
Easy
stripe
Find All Occurrences of the Pattern in the String
Medium
microsoft
Collatz Sequence
Easy
apple
Tuple with Same Product
Medium
Clear Digits
Easy
Maximum Ascending Subarray Sum
Easy
Permutation of Array using given order
Easy
twitter
Next Permutation of Integer
Easy
ibm
Longest Strictly Increasing or Strictly Decreasing Subarray
Easy
Check if Array Is Sorted and Rotated
Easy
Making A Large Island
Hard
amazon
facebook
google
uber
Divide Nodes Into the Maximum Number of Groups
Hard
Maximum Number of Fish in a Grid
Medium
Maximum Employees to Be Invited to a Meeting
Hard
Balance Parentheses with Minimum Insertions and Deletions
Hard
facebook
Make Lexicographically Smallest Array by Swapping Elements
Medium
Count elements in range in sorted matrix
Hard
google
Longest subarray with distinct elements
Easy
google
Fix the variable capture in closure
Medium
google
Check if any pair of rectangles overlap
Easy
google
Divide array into two subsets with minimum difference
Hard
microsoft
Area of intersection of two rectangles
Easy
google
Count Servers that Communicate
Medium
amazon
google
Check if a graph is minimally-connected
Medium
facebook
Split string into fewest palindromic substrings
Hard
google
Alice Joins Probability Student Club by Calculating Expected Values of Probabilistic Games
Hard
two-sigma
Describe and give an example of Ad-hoc, Parametric and Subtype polymorphism
Medium
microsoft
Run a Markov chain and count state visits
Easy
google
Map of Highest Peak
Medium
Construct Binary Search Tree BST from Postorder Traversal
Medium
google
Flatten a nested dictionary
Easy
stripe
Busiest period in a building
Easy
amazon
Grid Game
Medium
Sort a linked list in O(n log n) time and constant space
Medium
google
Implement a 2D iterator class
Medium
uber
Length of the longest path in a weighted tree
Hard
uber
First Completely Painted Row or Column
Medium
Minimum Cost to Make at Least One Valid Path in a Grid
Hard
Neighboring Bitwise XOR
Medium
Bitwise XOR of All Pairings
Medium
Minimize XOR
Medium
Generate random numbers from list based on given probabilities
Medium
triplebyte
Sort a list using reverse sublist operation
Hard
Find the Prefix Common Array of Two Arrays
Medium
Minimum Length of String After Operations
Medium
Check if a Parentheses String Can Be Valid
Medium
Construct K Palindrome Strings
Medium
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