Math

505 LeetCode questions

Difficulty Distribution

Easy
134
27%
Medium
242
48%
Hard
129
26%

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Questions

TitleDifficulty
Random Pick with WeightMedium
Add Two NumbersMedium
Reverse IntegerMedium
Palindrome NumberEasy
Roman to IntegerEasy
Rotate ImageMedium
Climbing StairsEasy
Rotate ArrayMedium
Happy NumberEasy
Count PrimesMedium
Perfect SquaresMedium
Bulb SwitcherMedium
Integer BreakMedium
Perfect NumberEasy
Fibonacci NumberEasy
Plus OneEasy
Integer to RomanMedium
Nth DigitMedium
Unique PathsMedium
Find the Winner of the Circular GameMedium
Water BottlesEasy
Number of Good PairsEasy
Maximum Number of Balls in a BoxEasy
Smallest Divisible Digit Product IEasy
Smallest Divisible Digit Product IIHard
Maximum Product of Three NumbersEasy
Largest Odd Number in StringEasy
Add Two IntegersEasy
Count Partitions with Even Sum DifferenceEasy
Pow(x, n)Medium
Rotate FunctionMedium
Count All Valid Pickup and Delivery OptionsHard
Sqrt(x)Easy
Basic Calculator IIMedium
Add DigitsEasy
Missing NumberEasy
Nim GameEasy
Next Greater Element IIIMedium
Preimage Size of Factorial Zeroes FunctionHard
Smallest Range IEasy
Smallest Range IIMedium
K Closest Points to OriginMedium
Count Ways to Build Rooms in an Ant ColonyHard
Sum of All Subset XOR TotalsEasy
Basic CalculatorHard
Excel Sheet Column NumberEasy
Minimum Moves to Equal Array Elements IIIEasy
Check If Digits Are Equal in String After Operations IIHard
Insert Delete GetRandom O(1)Medium
Insert Delete GetRandom O(1) - Duplicates allowedHard
Find the Child Who Has the Ball After K SecondsEasy
Fizz BuzzEasy
Greatest Common Divisor of StringsEasy
Convert to Base -2Medium
Add StringsEasy
Robot Bounded In CircleMedium
Number of Different Subsequences GCDsHard
Divide Two IntegersMedium
Multiply StringsMedium
Permutation SequenceHard
Add BinaryEasy
Gray CodeMedium
Unique Binary Search TreesMedium
Max Points on a LineHard
Evaluate Reverse Polish NotationMedium
Fraction to Recurring DecimalMedium
Excel Sheet Column TitleEasy
Factorial Trailing ZeroesMedium
Power of TwoEasy
Number of Digit OneHard
Different Ways to Add ParenthesesMedium
Ugly NumberEasy
Ugly Number IIMedium
Integer to English WordsHard
Power of ThreeEasy
Power of FourEasy
Valid Perfect SquareEasy
Largest Divisible SubsetMedium
Sum of Two IntegersMedium
Super PowMedium
Shuffle an ArrayMedium
Elimination GameMedium
Random Pick IndexMedium
Convert a Number to HexadecimalEasy
Arranging CoinsEasy
Add Two Numbers IIMedium
Minimum Moves to Equal Array ElementsMedium
Minimum Moves to Equal Array Elements IIMedium
Can I WinMedium
Predict the WinnerMedium
Base 7Easy
Continuous Subarray SumMedium
Complex Number MultiplicationMedium
Minimum Time DifferenceMedium
Optimal DivisionMedium
Find the Closest PalindromeHard
Erect the FenceHard
Sum of Square NumbersMedium
Solve the EquationMedium
2 Keys KeyboardMedium

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