Counting

177 LeetCode questions

Difficulty Distribution

Easy
58
33%
Medium
95
54%
Hard
24
14%

Top Companies

Questions

TitleDifficulty
Check If Array Pairs Are Divisible by kMedium
Majority ElementEasy
Sort Characters By FrequencyMedium
Count Tested Devices After Test OperationsEasy
Number of Good PairsEasy
Maximum Number of Balls in a BoxEasy
First Unique Character in a StringEasy
Top K Frequent ElementsMedium
Top K Frequent WordsMedium
Count Pairs Of Similar StringsEasy
Split the ArrayEasy
Largest Combination With Bitwise AND Greater Than ZeroMedium
Threshold Majority QueriesHard
Reorganize StringMedium
Increasing Decreasing StringEasy
Number of Different Subsequences GCDsHard
Maximum Number of Pairs in ArrayEasy
Majority Element IIMedium
Maximum Number of BalloonsEasy
Task SchedulerMedium
Ransom NoteEasy
Largest Palindromic NumberMedium
Subarrays with K Different IntegersHard
Bulls and CowsMedium
Minimum Swaps to Avoid Forbidden ValuesHard
Design Parking SystemEasy
Longest Balanced Substring IMedium
Minimum Increment to Make Array UniqueMedium
Identify the Largest Outlier in an ArrayMedium
Count Number of Pairs With Absolute Difference KEasy
Count Elements With Maximum FrequencyEasy
Pairs of Songs With Total Durations Divisible by 60Medium
Sum of Beauty of All SubstringsMedium
Minimum Operations to Make the Array AlternatingMedium
Minimum Number of Pushes to Type Word IIMedium
Count Servers that CommunicateMedium
Longest Harmonious SubsequenceEasy
Count Number of Bad PairsMedium
Best Poker HandEasy
Number of Equivalent Domino PairsEasy
Reordered Power of 2Medium
Total Characters in String After Transformations IMedium
Sum of Prefix Scores of StringsHard
Maximum Difference Between Even and Odd Frequency IEasy
Lexicographically Smallest Permutation Greater Than TargetMedium
Most Common WordEasy
Maximum Population YearEasy
Minimum Rounds to Complete All TasksMedium
Split a String in Balanced StringsEasy
Rearrange String k Distance ApartHard
Sum of Unique ElementsEasy
Maximum Total Damage With Spell CastingMedium
Least Number of Unique Integers after K RemovalsMedium
Check if One String Swap Can Make Strings EqualEasy
Minimum Number of Operations to Make Array EmptyMedium
Maximum Score Words Formed by LettersHard
Distant BarcodesMedium
Minimum Number of Steps to Make Two Strings AnagramMedium
Determine if Two Strings Are CloseMedium
Minimum Number of KeypressesMedium
Kth Distinct String in an ArrayEasy
Substrings of Size Three with Distinct CharactersEasy
Replace Question Marks in String to Minimize Its ValueMedium
Uncommon Words from Two SentencesEasy
Construct K Palindrome StringsMedium
Tuple with Same ProductMedium
Number of Pairs of Interchangeable RectanglesMedium
Divide Array Into Equal PairsEasy
Check if All Characters Have Equal Number of OccurrencesEasy
Find Most Frequent Vowel and ConsonantEasy
Sort Integers by The Number of 1 BitsEasy
Count Largest GroupEasy
Detect SquaresMedium
Maximum Number of Operations to Move Ones to the EndMedium
Find Words That Can Be Formed by CharactersEasy
Find Longest Special Substring That Occurs Thrice IMedium
Rearrange Characters to Make Target StringEasy
Count Pairs Of NodesHard
Number of Unique CategoriesMedium
Minimum Length of String After OperationsMedium
Two-Letter Card GameMedium
Find Smallest Common Element in All RowsMedium
Longest Subsequence Repeated k TimesHard
Find Lucky Integer in an ArrayEasy
Rank Teams by VotesMedium
Find Valid Pair of Adjacent Digits in StringEasy
Minimum Operations to Write the Letter Y on a GridMedium
Sum of Perfect Square AncestorsHard
3Sum With MultiplicityMedium
Longest Palindrome by Concatenating Two Letter WordsMedium
Largest Color Value in a Directed GraphHard
Number of Divisible SubstringsMedium
Equal Sum Arrays With Minimum Number of OperationsMedium
Find All Lonely Numbers in the ArrayMedium
Number of Pairs of Strings With Concatenation Equal to TargetMedium
First Letter to Appear TwiceEasy
Intersection of Three Sorted ArraysEasy
Construct String With Repeat LimitMedium
Furthest Point From OriginEasy
Remove Letter To Equalize FrequencyEasy

Showing 100 of 177 questions