Counting

159 LeetCode questions

Difficulty Distribution

Easy
56
35%
Medium
81
51%
Hard
22
14%

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Questions

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

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