3Pow(x, n)MediumMathRecursion
Solve → 4Sqrt(x)EasyMathBinary Search
Solve → 5Climbing StairsEasyMathDynamic ProgrammingMemoization
Solve → 6Angle Between Hands of a ClockMediumMath
Solve → 7Unique PathsMediumMathDynamic ProgrammingCombinatorics
Solve → 8Fibonacci NumberEasyMathDynamic ProgrammingRecursion
Solve → 9Total Waviness of Numbers in Range IIHardMathDynamic Programming
Solve → 10Add StringsEasyMathStringSimulation
Solve → 11Fizz BuzzEasyMathStringSimulation
Solve → 12Add BinaryEasyMathStringBit Manipulation
Solve → 13Number of ZigZag Arrays IIHardMathDynamic Programming
Solve → 16Sqrt(x)EasyMathBinary Search
Solve → 17Climbing StairsEasyMathDynamic ProgrammingMemoization
Solve → 18Pow(x, n)MediumMathRecursion
Solve → 19Add BinaryEasyMathStringBit Manipulation
Solve → 20Fibonacci NumberEasyMathDynamic ProgrammingRecursion
Solve → 21Unique PathsMediumMathDynamic ProgrammingCombinatorics
Solve → 22Power of TwoEasyMathBit ManipulationRecursion
Solve → 23Angle Between Hands of a ClockMediumMath
Solve → 25Excel Sheet Column TitleEasyMathString
Solve → 26Divide Two IntegersMediumMathBit Manipulation
Solve → 27Add StringsEasyMathStringSimulation
Solve → 28Number of ZigZag Arrays IIHardMathDynamic Programming
Solve → 29Count Good NumbersMediumMathRecursion
Solve → 30Add DigitsEasyMathSimulationNumber Theory
Solve → 31Permutation SequenceHardMathRecursion
Solve → 32Rotated DigitsMediumMathDynamic Programming
Solve → 33Power of ThreeEasyMathRecursion
Solve → 34Fizz BuzzEasyMathStringSimulation
Solve → 35Greatest Common Divisor of StringsEasyMathString
Solve → 36N-th Tribonacci NumberEasyMathDynamic ProgrammingMemoization
Solve → 37Traffic Signal ColorEasyMathStringSimulation
Solve → 38Mirror Distance of an IntegerEasyMath
Solve → 39Factorial Trailing ZeroesMediumMath
Solve → 40Count K-th Roots in a RangeMediumMathBinary Search
Solve → 41Strictly Palindromic NumberMediumMathTwo PointersBrainteaser
Solve → 42Total Waviness of Numbers in Range IIHardMathDynamic Programming
Solve → 43Total Waviness of Numbers in Range IMediumMathDynamic ProgrammingEnumeration
Solve → 45Rectangle AreaMediumMathGeometry
Solve → 46Subtract the Product and Sum of Digits of an IntegerEasyMath
Solve → 47Unique Binary Search TreesMediumMathDynamic ProgrammingTree
Solve → 50Climbing StairsEasyMathDynamic ProgrammingMemoization
Solve → 51Add BinaryEasyMathStringBit Manipulation
Solve → 52Sqrt(x)EasyMathBinary Search
Solve → 53Power of TwoEasyMathBit ManipulationRecursion
Solve → 54Fibonacci NumberEasyMathDynamic ProgrammingRecursion
Solve → 55Pow(x, n)MediumMathRecursion
Solve → 57Unique PathsMediumMathDynamic ProgrammingCombinatorics
Solve → 58Basic CalculatorHardMathStringStack
Solve → 59Divide Two IntegersMediumMathBit Manipulation
Solve → 60Count Good NumbersMediumMathRecursion
Solve → 61Permutation SequenceHardMathRecursion
Solve → 62Fizz BuzzEasyMathStringSimulation
Solve → 63Add DigitsEasyMathSimulationNumber Theory
Solve → 64Excel Sheet Column TitleEasyMathString
Solve → 65Greatest Common Divisor of StringsEasyMathString
Solve → 66Sum of Two IntegersMediumMathBit Manipulation
Solve → 67Number of Digit OneHardMathDynamic ProgrammingRecursion
Solve → 68N-th Tribonacci NumberEasyMathDynamic ProgrammingMemoization
Solve → 70Valid Perfect SquareEasyMathBinary Search
Solve → 71Angle Between Hands of a ClockMediumMath
Solve → 72Add StringsEasyMathStringSimulation
Solve → 73Multiply StringsMediumMathStringSimulation
Solve → 74Basic Calculator IIMediumMathStringStack
Solve → 75Number of ZigZag Arrays IIHardMathDynamic Programming
Solve → 76Perfect SquaresMediumMathDynamic ProgrammingBreadth-First Search
Solve → 78Water BottlesEasyMathSimulation
Solve → 79Integer BreakMediumMathDynamic Programming
Solve → 80Rectangle AreaMediumMathGeometry
Solve → 81Strictly Palindromic NumberMediumMathTwo PointersBrainteaser
Solve → 82Factorial Trailing ZeroesMediumMath
Solve → 83Prime Number of Set Bits in Binary RepresentationEasyMathBit Manipulation
Solve → 84Concatenation of Consecutive Binary NumbersMediumMathBit ManipulationSimulation
Solve → 85Mirror Distance of an IntegerEasyMath
Solve → 86Power of ThreeEasyMathRecursion
Solve → 87Subtract the Product and Sum of Digits of an IntegerEasyMath
Solve → 88Rotated DigitsMediumMathDynamic Programming
Solve → 89Prime PalindromeMediumMathNumber Theory
Solve → 90Expression Add OperatorsHardMathStringBacktracking
Solve → 91Nth DigitMediumMathBinary Search
Solve → 92Divisor GameEasyMathDynamic ProgrammingBrainteaser
Solve → 93Concatenate Non-Zero Digits and Multiply by Sum IIMediumMathStringPrefix Sum
Solve → 94Count Odd Numbers in an Interval RangeEasyMath
Solve → 95Bulb SwitcherMediumMathBrainteaser
Solve → 96Smallest Even MultipleEasyMathNumber Theory
Solve → 97Find Nth Smallest Integer With K One BitsHardMathBit ManipulationCombinatorics
Solve → 99Minimum Number of Pushes to Type Word IEasyMathStringGreedy
Solve → 100Traffic Signal ColorEasyMathStringSimulation
Solve → 101Day of the YearEasyMathString
Solve → 102Count K-th Roots in a RangeMediumMathBinary Search
Solve → 103Count the Digits That Divide a NumberEasyMath
Solve → 104Basic Calculator IIIHardMathStringStack
Solve → 105Total Waviness of Numbers in Range IIHardMathDynamic Programming
Solve → 106Total Waviness of Numbers in Range IMediumMathDynamic ProgrammingEnumeration
Solve → 107Number of Ways to Reach a Position After Exactly k StepsMediumMathDynamic ProgrammingCombinatorics
Solve → 108Unique Binary Search TreesMediumMathDynamic ProgrammingTree
Solve → 109Palindrome NumberEasyMath
Solve → 110Climbing StairsEasyMathDynamic ProgrammingMemoization
Solve → 111Reverse IntegerMediumMath
Solve → 113Add BinaryEasyMathStringBit Manipulation
Solve → 114Pow(x, n)MediumMathRecursion
Solve → 115Power of TwoEasyMathBit ManipulationRecursion
Solve → 116Unique PathsMediumMathDynamic ProgrammingCombinatorics
Solve → 117Basic CalculatorHardMathStringStack
Solve → 118Sqrt(x)EasyMathBinary Search
Solve → 119Fibonacci NumberEasyMathDynamic ProgrammingRecursion
Solve → 120Divide Two IntegersMediumMathBit Manipulation
Solve → 121Greatest Common Divisor of StringsEasyMathString
Solve → 122Power of ThreeEasyMathRecursion
Solve → 123Fizz BuzzEasyMathStringSimulation
Solve → 124Maximum SwapMediumMathGreedy
Solve → 125Perfect SquaresMediumMathDynamic ProgrammingBreadth-First Search
Solve → 126Add StringsEasyMathStringSimulation
Solve → 127Sum of Two IntegersMediumMathBit Manipulation
Solve → 128Multiply StringsMediumMathStringSimulation
Solve → 129Integer to English WordsHardMathStringRecursion
Solve → 130Permutation SequenceHardMathRecursion
Solve → 131Add DigitsEasyMathSimulationNumber Theory
Solve → 132Expression Add OperatorsHardMathStringBacktracking
Solve → 133Count Good NumbersMediumMathRecursion
Solve → 135Soup ServingsMediumMathDynamic ProgrammingProbability and Statistics
Solve → 136Excel Sheet Column TitleEasyMathString
Solve → 137Basic Calculator IIMediumMathStringStack
Solve → 138Nth DigitMediumMathBinary Search
Solve → 139The kth Factor of nMediumMathNumber Theory
Solve → 140Power of FourEasyMathBit ManipulationRecursion
Solve → 141Number of Digit OneHardMathDynamic ProgrammingRecursion
Solve → 142Water BottlesEasyMathSimulation
Solve → 143Count Numbers with Unique DigitsMediumMathDynamic ProgrammingBacktracking
Solve → 144Sum of Square NumbersMediumMathTwo PointersBinary Search
Solve → 145New 21 GameMediumMathDynamic ProgrammingSliding Window
Solve → 146Nim GameEasyMathBrainteaserGame Theory
Solve → 147Check if Number is a Sum of Powers of ThreeMediumMath
Solve → 148K-th Symbol in GrammarMediumMathBit ManipulationRecursion
Solve → 149Find the Punishment Number of an IntegerMediumMathBacktracking
Solve → 150Find the K-th Character in String Game IEasyMathBit ManipulationRecursion
Solve → 151Water and Jug ProblemMediumMathDepth-First SearchBreadth-First Search
Solve → 152Largest Odd Number in StringEasyMathStringGreedy
Solve → 153Bulb SwitcherMediumMathBrainteaser
Solve → 154Find the Maximum Achievable NumberEasyMath
Solve → 155Unique Binary Search TreesMediumMathDynamic ProgrammingTree
Solve → 156Different Ways to Add ParenthesesMediumMathStringDynamic Programming
Solve → 157Valid Perfect SquareEasyMathBinary Search
Solve → 158Calculate Money in Leetcode BankEasyMath
Solve → 159Factorial Trailing ZeroesMediumMath
Solve → 160Self Dividing NumbersEasyMath
Solve → 161Arranging CoinsEasyMathBinary Search
Solve → 162Divisor GameEasyMathDynamic ProgrammingBrainteaser
Solve → 163Basic Calculator IIIHardMathStringStack
Solve → 164Divisible and Non-divisible Sums DifferenceEasyMath
Solve → 165Next Greater Element IIIMediumMathTwo PointersString
Solve → 1662 Keys KeyboardMediumMathDynamic Programming
Solve → 167Number of Steps to Reduce a Number to ZeroEasyMathBit Manipulation
Solve → 168Number of Common FactorsEasyMathEnumerationNumber Theory
Solve → 169Rotated DigitsMediumMathDynamic Programming
Solve → 170Excel Sheet Column NumberEasyMathString
Solve → 171Convert Integer to the Sum of Two No-Zero IntegersEasyMath
Solve → 172Count Square Sum TriplesEasyMathEnumeration
Solve → 173Integer BreakMediumMathDynamic Programming
Solve → 174Implement Rand10() Using Rand7()MediumMathRejection SamplingRandomized
Solve → 175N-th Tribonacci NumberEasyMathDynamic ProgrammingMemoization
Solve → 176Cat and MouseHardMathDynamic ProgrammingGraph Theory
Solve → 177Count Number of Balanced PermutationsHardMathStringDynamic Programming
Solve → 178Sum of k-Mirror NumbersHardMathEnumeration
Solve → 179Count the Number of Powerful IntegersHardMathStringDynamic Programming
Solve → 180Smallest Number With All Set BitsEasyMathBit Manipulation
Solve → 181Distribute Candies Among Children IIMediumMathCombinatoricsEnumeration
Solve → 182Count Odd Numbers in an Interval RangeEasyMath
Solve → 183Gray CodeMediumMathBacktrackingBit Manipulation
Solve → 184Rectangle AreaMediumMathGeometry
Solve → 185Valid SquareMediumMathGeometry
Solve → 186Convert a Number to HexadecimalEasyMathStringBit Manipulation
Solve → 187Subtract the Product and Sum of Digits of an IntegerEasyMath
Solve → 188Fraction Addition and SubtractionMediumMathStringSimulation
Solve → 189Maximum 69 NumberEasyMathGreedy
Solve → 190Count Operations to Obtain ZeroEasyMathSimulation
Solve → 191Count the Number of Ideal ArraysHardMathDynamic ProgrammingCombinatorics
Solve → 192Find the Closest PalindromeHardMathString
Solve → 193Maximum Value at a Given Index in a Bounded ArrayMediumMathBinary SearchGreedy
Solve → 194Pass the PillowEasyMathSimulation
Solve → 195Nth Magical NumberHardMathBinary Search
Solve → 196Reach a NumberMediumMathBinary Search
Solve → 198Elimination GameMediumMathRecursion
Solve → 199Three DivisorsEasyMathEnumerationNumber Theory
Solve → 200Minimum Swaps to Make Strings EqualMediumMathStringGreedy
Solve → 202Super PowMediumMathDivide and Conquer
Solve → 203Count Symmetric IntegersEasyMathEnumeration
Solve → 204Find the K-th Character in String Game IIHardMathBit ManipulationRecursion
Solve → 205Alice and Bob Playing Flower GameMediumMath
Solve → 206Number of Days Between Two DatesEasyMathString
Solve → 207Strictly Palindromic NumberMediumMathTwo PointersBrainteaser
Solve → 209Smallest Good BaseHardMathBinary Search
Solve → 210String TransformationHardMathStringDynamic Programming
Solve → 211Maximum Number That Sum of the Prices Is Less Than or Equal to KMediumMathBinary SearchDynamic Programming
Solve → 212Maximum Odd Binary NumberEasyMathStringGreedy
Solve → 213Max Difference You Can Get From Changing an IntegerMediumMathGreedy
Solve → 214Convert the TemperatureEasyMath
Solve → 215Day of the YearEasyMathString
Solve → 216Minimum Cuts to Divide a CircleEasyMathGeometry
Solve → 217Find the Pivot IntegerEasyMathPrefix Sum
Solve → 218Construct the RectangleEasyMath
Solve → 219Check If Digits Are Equal in String After Operations IEasyMathStringSimulation
Solve → 220Can I WinMediumMathDynamic ProgrammingBit Manipulation
Solve → 221Count of Matches in TournamentEasyMathSimulation
Solve → 222Guess Number Higher or Lower IIMediumMathDynamic ProgrammingGame Theory
Solve → 223Count Number of Homogenous SubstringsMediumMathString
Solve → 224Minimum Cost to Set Cooking TimeMediumMathEnumeration
Solve → 225Super Egg DropHardMathBinary SearchDynamic Programming
Solve → 227Maximum Split of Positive Even IntegersMediumMathBacktrackingGreedy
Solve → 228Consecutive Numbers SumHardMathEnumeration
Solve → 229Kth Smallest Number in Multiplication TableHardMathBinary Search
Solve → 230Super PalindromesHardMathStringEnumeration
Solve → 231Numbers With Repeated DigitsHardMathDynamic Programming
Solve → 232Find the Minimum Number of Fibonacci Numbers Whose Sum Is KMediumMathGreedy
Solve → 233Simplified FractionsMediumMathStringNumber Theory
Solve → 234Smallest Even MultipleEasyMathNumber Theory
Solve → 236Prime PalindromeMediumMathNumber Theory
Solve → 237Maximum Difference by Remapping a DigitEasyMathGreedy
Solve → 238Find the Key of the NumbersEasyMath
Solve → 239Manhattan Distances of All Arrangements of PiecesHardMathCombinatorics
Solve → 240Count Total Number of Colored CellsMediumMath
Solve → 241Mirror ReflectionMediumMathGeometryNumber Theory
Solve → 242Water Bottles IIMediumMathSimulation
Solve → 243Minimum One Bit Operations to Make Integers ZeroHardMathDynamic ProgrammingBit Manipulation
Solve → 244Maximum Product of Two DigitsEasyMathSorting
Solve → 245Vowels Game in a StringMediumMathStringBrainteaser
Solve → 246Minimum Operations to Equalize Binary StringHardMathStringBreadth-First Search
Solve → 247XOR Operation in an ArrayEasyMathBit Manipulation
Solve → 248Count Distinct Integers After Removing ZerosMediumMathDynamic Programming
Solve → 2494 Keys KeyboardMediumMathDynamic Programming
Solve → 250Count All Valid Pickup and Delivery OptionsHardMathDynamic ProgrammingCombinatorics
Solve → 251Circle and Rectangle OverlappingMediumMathGeometry
Solve → 252Poor PigsHardMathDynamic ProgrammingCombinatorics
Solve → 253Find Positive Integer Solution for a Given EquationMediumMathTwo PointersBinary Search
Solve → 254Egg Drop With 2 Eggs and N FloorsMediumMathDynamic Programming
Solve → 255Count the Digits That Divide a NumberEasyMath
Solve → 256Flip Game IIMediumMathDynamic ProgrammingBacktracking
Solve → 257Similar RGB ColorEasyMathStringEnumeration
Solve → 258Determine if a Cell Is Reachable at a Given TimeMediumMath
Solve → 259Confusing Number IIHardMathBacktracking
Solve → 260Number of Substrings With Only 1sMediumMathString
Solve → 261Fancy SequenceHardMathDesignSegment Tree
Solve → 262Maximum Score From Removing StonesMediumMathGreedyHeap (Priority Queue)
Solve → 263Number of Ways to Rearrange Sticks With K Sticks VisibleHardMathDynamic ProgrammingCombinatorics
Solve → 264Minimum Cost to Change the Final Value of ExpressionHardMathStringDynamic Programming
Solve → 265Find the Largest Palindrome Divisible by KHardMathStringDynamic Programming
Solve → 266Convert Date to BinaryEasyMathString
Solve → 267A Number After a Double ReversalEasyMath
Solve → 268Closest Prime Numbers in RangeMediumMathNumber Theory
Solve → 269Split With Minimum SumEasyMathGreedySorting
Solve → 270Equal Rational NumbersHardMathString
Solve → 271Sum of Digits in Base KEasyMath
Solve → 272Count the Number of Arrays with K Matching Adjacent ElementsHardMathCombinatorics
Solve → 273Check If Digits Are Equal in String After Operations IIHardMathStringCombinatorics
Solve → 274Solve the EquationMediumMathStringSimulation
Solve → 275Robot Bounded In CircleMediumMathStringSimulation
Solve → 276Find Closest PersonEasyMath
Solve → 277Balanced K-Factor DecompositionMediumMathBacktrackingNumber Theory
Solve → 278Convert to Base -2MediumMath
Solve → 279Broken CalculatorMediumMathGreedy
Solve → 280Calculate Delayed Arrival TimeEasyMath
Solve → 281Maximum Xor ProductMediumMathGreedyBit Manipulation
Solve → 282Monotone Increasing DigitsMediumMathGreedy
Solve → 283Find Nth Smallest Integer With K One BitsHardMathBit ManipulationCombinatorics
Solve → 284Minimum Time to Complete All DeliveriesMediumMathBinary Search
Solve → 285Maximum Containers on a ShipEasyMath
Solve → 286Concatenate Non-Zero Digits and Multiply by Sum IIMediumMathStringPrefix Sum
Solve → 287Total Waviness of Numbers in Range IMediumMathDynamic ProgrammingEnumeration
Solve → 288Total Waviness of Numbers in Range IIHardMathDynamic Programming
Solve → 289Angle Between Hands of a ClockMediumMath
Solve → 290Palindrome NumberEasyMath
Solve → 291Reverse IntegerMediumMath
Solve → 292Climbing StairsEasyMathDynamic ProgrammingMemoization
Solve → 294Pow(x, n)MediumMathRecursion
Solve → 295Add BinaryEasyMathStringBit Manipulation
Solve → 296Power of TwoEasyMathBit ManipulationRecursion
Solve → 297Basic CalculatorHardMathStringStack
Solve → 298Unique PathsMediumMathDynamic ProgrammingCombinatorics
Solve → 299Sqrt(x)EasyMathBinary Search
Solve → 300Fibonacci NumberEasyMathDynamic ProgrammingRecursion
Solve → 301Divide Two IntegersMediumMathBit Manipulation
Solve → 302Power of ThreeEasyMathRecursion
Solve → 303Greatest Common Divisor of StringsEasyMathString
Solve → 304Add StringsEasyMathStringSimulation
Solve → 305Count Good NumbersMediumMathRecursion
Solve → 306Perfect SquaresMediumMathDynamic ProgrammingBreadth-First Search
Solve → 307Fizz BuzzEasyMathStringSimulation
Solve → 308Expression Add OperatorsHardMathStringBacktracking
Solve → 309Sum of Two IntegersMediumMathBit Manipulation
Solve → 310Permutation SequenceHardMathRecursion
Solve → 311Multiply StringsMediumMathStringSimulation
Solve → 312Add DigitsEasyMathSimulationNumber Theory
Solve → 313Maximum SwapMediumMathGreedy
Solve → 314Integer to English WordsHardMathStringRecursion
Solve → 315Nth DigitMediumMathBinary Search
Solve → 316Soup ServingsMediumMathDynamic ProgrammingProbability and Statistics
Solve → 317Excel Sheet Column TitleEasyMathString
Solve → 319Count Numbers with Unique DigitsMediumMathDynamic ProgrammingBacktracking
Solve → 320New 21 GameMediumMathDynamic ProgrammingSliding Window
Solve → 321Number of Digit OneHardMathDynamic ProgrammingRecursion
Solve → 322K-th Symbol in GrammarMediumMathBit ManipulationRecursion
Solve → 323Basic Calculator IIMediumMathStringStack
Solve → 324Rotated DigitsMediumMathDynamic Programming
Solve → 325The kth Factor of nMediumMathNumber Theory
Solve → 326Water BottlesEasyMathSimulation
Solve → 327Power of FourEasyMathBit ManipulationRecursion
Solve → 328Cat and MouseHardMathDynamic ProgrammingGraph Theory
Solve → 329Valid Perfect SquareEasyMathBinary Search
Solve → 330Sum of Square NumbersMediumMathTwo PointersBinary Search
Solve → 331Nim GameEasyMathBrainteaserGame Theory
Solve → 332Factorial Trailing ZeroesMediumMath
Solve → 333N-th Tribonacci NumberEasyMathDynamic ProgrammingMemoization
Solve → 334Check if Number is a Sum of Powers of ThreeMediumMath
Solve → 335Bulb SwitcherMediumMathBrainteaser
Solve → 336Smallest Good BaseHardMathBinary Search
Solve → 337Numbers With Repeated DigitsHardMathDynamic Programming
Solve → 339Find the Punishment Number of an IntegerMediumMathBacktracking
Solve → 340String TransformationHardMathStringDynamic Programming
Solve → 341Maximum Number That Sum of the Prices Is Less Than or Equal to KMediumMathBinary SearchDynamic Programming
Solve → 342Unique Binary Search TreesMediumMathDynamic ProgrammingTree
Solve → 343Water and Jug ProblemMediumMathDepth-First SearchBreadth-First Search
Solve → 344Guess Number Higher or Lower IIMediumMathDynamic ProgrammingGame Theory
Solve → 346Largest Odd Number in StringEasyMathStringGreedy
Solve → 347Find the K-th Character in String Game IEasyMathBit ManipulationRecursion
Solve → 348Kth Smallest Number in Multiplication TableHardMathBinary Search
Solve → 349Basic Calculator IIIHardMathStringStack
Solve → 350Super PalindromesHardMathStringEnumeration
Solve → 351Divisor GameEasyMathDynamic ProgrammingBrainteaser
Solve → 352Find the Minimum Number of Fibonacci Numbers Whose Sum Is KMediumMathGreedy
Solve → 353Simplified FractionsMediumMathStringNumber Theory
Solve → 354Fancy SequenceHardMathDesignSegment Tree
Solve → 355Minimum Cost to Set Cooking TimeMediumMathEnumeration
Solve → 356Maximum Split of Positive Even IntegersMediumMathBacktrackingGreedy
Solve → 357Super Egg DropHardMathBinary SearchDynamic Programming
Solve → 358Self Dividing NumbersEasyMath
Solve → 359Flip Game IIMediumMathDynamic ProgrammingBacktracking
Solve → 3604 Keys KeyboardMediumMathDynamic Programming
Solve → 361Similar RGB ColorEasyMathStringEnumeration
Solve → 362Confusing Number IIHardMathBacktracking
Solve → 363Circle and Rectangle OverlappingMediumMathGeometry
Solve → 364Number of Substrings With Only 1sMediumMathString
Solve → 365Maximum Score From Removing StonesMediumMathGreedyHeap (Priority Queue)
Solve → 366Number of Ways to Rearrange Sticks With K Sticks VisibleHardMathDynamic ProgrammingCombinatorics
Solve → 367Minimum Cost to Change the Final Value of ExpressionHardMathStringDynamic Programming
Solve → 368Determine if a Cell Is Reachable at a Given TimeMediumMath
Solve → 369Different Ways to Add ParenthesesMediumMathStringDynamic Programming
Solve → 370Integer BreakMediumMathDynamic Programming
Solve → 371Arranging CoinsEasyMathBinary Search
Solve → 372Find the Maximum Achievable NumberEasyMath
Solve → 373Find Positive Integer Solution for a Given EquationMediumMathTwo PointersBinary Search
Solve → 374Calculate Money in Leetcode BankEasyMath
Solve → 376Number of Steps to Reduce a Number to ZeroEasyMathBit Manipulation
Solve → 377Rectangle AreaMediumMathGeometry
Solve → 378Subtract the Product and Sum of Digits of an IntegerEasyMath
Solve → 379Excel Sheet Column NumberEasyMathString
Solve → 380Divisible and Non-divisible Sums DifferenceEasyMath
Solve → 381Count Odd Numbers in an Interval RangeEasyMath
Solve → 382Count Square Sum TriplesEasyMathEnumeration
Solve → 383Next Greater Element IIIMediumMathTwo PointersString
Solve → 3842 Keys KeyboardMediumMathDynamic Programming
Solve → 385Number of Common FactorsEasyMathEnumerationNumber Theory
Solve → 386Convert Integer to the Sum of Two No-Zero IntegersEasyMath
Solve → 387Minimum Sensors to Cover GridMediumMath
Solve → 388Convert a Number to HexadecimalEasyMathStringBit Manipulation
Solve → 389Strictly Palindromic NumberMediumMathTwo PointersBrainteaser
Solve → 391Implement Rand10() Using Rand7()MediumMathRejection SamplingRandomized
Solve → 392Count the Number of Powerful IntegersHardMathStringDynamic Programming
Solve → 393Smallest Number With All Set BitsEasyMathBit Manipulation
Solve → 394Count Number of Balanced PermutationsHardMathStringDynamic Programming
Solve → 395Distribute Candies Among Children IIMediumMathCombinatoricsEnumeration
Solve → 396Sum of k-Mirror NumbersHardMathEnumeration
Solve → 397Angle Between Hands of a ClockMediumMath
Solve → 398Gray CodeMediumMathBacktrackingBit Manipulation
Solve → 399Valid SquareMediumMathGeometry
Solve → 400Maximum Value at a Given Index in a Bounded ArrayMediumMathBinary SearchGreedy
Solve → 401Nth Magical NumberHardMathBinary Search
Solve → 402Reach a NumberMediumMathBinary Search
Solve → 403Fraction Addition and SubtractionMediumMathStringSimulation
Solve → 404Prime PalindromeMediumMathNumber Theory
Solve → 405Day of the YearEasyMathString
Solve → 406Count the Number of Ideal ArraysHardMathDynamic ProgrammingCombinatorics
Solve → 407Count Operations to Obtain ZeroEasyMathSimulation
Solve → 408Maximum 69 NumberEasyMathGreedy
Solve → 409Find the Closest PalindromeHardMathString
Solve → 410Pass the PillowEasyMathSimulation
Solve → 411Count Symmetric IntegersEasyMathEnumeration
Solve → 412Elimination GameMediumMathRecursion
Solve → 413Minimum Swaps to Make Strings EqualMediumMathStringGreedy
Solve → 414Smallest Even MultipleEasyMathNumber Theory
Solve → 415Super PowMediumMathDivide and Conquer
Solve → 416Three DivisorsEasyMathEnumerationNumber Theory
Solve → 417Construct the RectangleEasyMath
Solve → 418Can I WinMediumMathDynamic ProgrammingBit Manipulation
Solve → 419Find the Pivot IntegerEasyMathPrefix Sum
Solve → 420Find the K-th Character in String Game IIHardMathBit ManipulationRecursion
Solve → 421Alice and Bob Playing Flower GameMediumMath
Solve → 422Count of Matches in TournamentEasyMathSimulation
Solve → 423Number of Days Between Two DatesEasyMathString
Solve → 424Count the Digits That Divide a NumberEasyMath
Solve → 425Maximum Odd Binary NumberEasyMathStringGreedy
Solve → 426Convert the TemperatureEasyMath
Solve → 427Minimum Cuts to Divide a CircleEasyMathGeometry
Solve → 428Mirror ReflectionMediumMathGeometryNumber Theory
Solve → 429Maximum Product of Two DigitsEasyMathSorting
Solve → 430Max Difference You Can Get From Changing an IntegerMediumMathGreedy
Solve → 431Check If Digits Are Equal in String After Operations IEasyMathStringSimulation
Solve → 432Concatenate Non-Zero Digits and Multiply by Sum IIMediumMathStringPrefix Sum
Solve → 433Total Waviness of Numbers in Range IMediumMathDynamic ProgrammingEnumeration
Solve → 434Find Nth Smallest Integer With K One BitsHardMathBit ManipulationCombinatorics
Solve → 435Prime Number of Set Bits in Binary RepresentationEasyMathBit Manipulation
Solve → 436Minimum Operations to Equalize Binary StringHardMathStringBreadth-First Search
Solve → 437Concatenation of Consecutive Binary NumbersMediumMathBit ManipulationSimulation
Solve → 438Total Waviness of Numbers in Range IIHardMathDynamic Programming
Solve → 439Number of ZigZag Arrays IIHardMathDynamic Programming
Solve → 440Consecutive Numbers SumHardMathEnumeration
Solve → 441Count Number of Homogenous SubstringsMediumMathString
Solve → 442Egg Drop With 2 Eggs and N FloorsMediumMathDynamic Programming
Solve → 444Find the Key of the NumbersEasyMath
Solve → 445Manhattan Distances of All Arrangements of PiecesHardMathCombinatorics
Solve → 446Count Total Number of Colored CellsMediumMath
Solve → 447A Number After a Double ReversalEasyMath
Solve → 448Maximum Difference by Remapping a DigitEasyMathGreedy
Solve → 449Vowels Game in a StringMediumMathStringBrainteaser
Solve → 450Find Closest PersonEasyMath
Solve → 451XOR Operation in an ArrayEasyMathBit Manipulation
Solve → 452Water Bottles IIMediumMathSimulation
Solve → 453Calculate Delayed Arrival TimeEasyMath
Solve → 454Minimum One Bit Operations to Make Integers ZeroHardMathDynamic ProgrammingBit Manipulation
Solve → 455Count Distinct Integers After Removing ZerosMediumMathDynamic Programming
Solve → 456Broken CalculatorMediumMathGreedy
Solve → 457Minimum Number of Pushes to Type Word IEasyMathStringGreedy
Solve → 458Number of Ways to Reach a Position After Exactly k StepsMediumMathDynamic ProgrammingCombinatorics
Solve → 459Mirror Distance of an IntegerEasyMath
Solve → 460Count All Valid Pickup and Delivery OptionsHardMathDynamic ProgrammingCombinatorics
Solve → 461Poor PigsHardMathDynamic ProgrammingCombinatorics
Solve → 462Find the Largest Palindrome Divisible by KHardMathStringDynamic Programming
Solve → 463Convert Date to BinaryEasyMathString
Solve → 464Closest Prime Numbers in RangeMediumMathNumber Theory
Solve → 465Split With Minimum SumEasyMathGreedySorting
Solve → 466Robot Bounded In CircleMediumMathStringSimulation
Solve → 467Equal Rational NumbersHardMathString
Solve → 468Count the Number of Arrays with K Matching Adjacent ElementsHardMathCombinatorics
Solve → 469Check If Digits Are Equal in String After Operations IIHardMathStringCombinatorics
Solve → 470Solve the EquationMediumMathStringSimulation
Solve → 471Sum of Digits in Base KEasyMath
Solve → 472Balanced K-Factor DecompositionMediumMathBacktrackingNumber Theory
Solve → 473Maximum Xor ProductMediumMathGreedyBit Manipulation
Solve → 474Minimum Time to Complete All DeliveriesMediumMathBinary Search
Solve → 475Maximum Containers on a ShipEasyMath
Solve → 476Smallest Divisible Digit Product IIHardMathStringBacktracking
Solve → 477Count Sorted Vowel StringsMediumMathDynamic ProgrammingCombinatorics
Solve → 478Find the K-Beauty of a NumberEasyMathStringSliding Window
Solve → 479GCD of Odd and Even SumsEasyMathNumber Theory
Solve → 480Distribute Money to Maximum ChildrenEasyMathGreedy
Solve → 481Convert to Base -2MediumMath
Solve → 482Traffic Signal ColorEasyMathStringSimulation
Solve → 483Maximize Sum of Squares of DigitsMediumMathGreedy
Solve → 484Monotone Increasing DigitsMediumMathGreedy
Solve → 485Count K-th Roots in a RangeMediumMathBinary Search
Solve → 486Digit Operations to Make Two Integers EqualMediumMathGraph TheoryHeap (Priority Queue)
Solve →