method
Binary Search — animated LeetCode walkthroughs
LeetCode problems solved with Binary Search. Browse the complete tag, then watch the algorithm move — step-by-step animation, Python and Go.
352 problems · 302 animated · 50 locked
Full Binary search index
- 4Median of Two Sorted ArraysWatch
- 33Search in Rotated Sorted ArrayWatch
- 34Find First and Last Position of Element in Sorted ArrayWatch
- 35Search Insert PositionWatch
- 69Sqrt(x)Watch
- 74Search a 2D MatrixWatch
- 81Search in Rotated Sorted Array IIWatch
- 153Find Minimum in Rotated Sorted ArrayWatch
- 154Find Minimum in Rotated Sorted Array IIWatch
- 162Find Peak ElementWatch
- 167Two Sum II - Input Array Is SortedWatch
- 209Minimum Size Subarray SumWatch
- 222Count Complete Tree NodesWatch
- 240Search a 2D Matrix IIWatch
- 2593Sum SmallerLocked
- 268Missing NumberWatch
- 270Closest Binary Search Tree ValueLocked
- 275H-Index IIWatch
- 278First Bad VersionWatch
- 287Find the Duplicate NumberWatch
- 300Longest Increasing SubsequenceWatch
- 302Smallest Rectangle Enclosing Black PixelsLocked
- 315Count of Smaller Numbers After SelfWatch
- 327Count of Range SumWatch
- 349Intersection of Two ArraysWatch
- 350Intersection of Two Arrays IIWatch
- 352Data Stream as Disjoint IntervalsWatch
- 354Russian Doll EnvelopesWatch
- 362Design Hit CounterLocked
- 363Max Sum of Rectangle No Larger Than KWatch
- 367Valid Perfect SquareWatch
- 374Guess Number Higher or LowerWatch
- 378Kth Smallest Element in a Sorted MatrixWatch
- 400Nth DigitWatch
- 410Split Array Largest SumWatch
- 436Find Right IntervalWatch
- 441Arranging CoinsWatch
- 456132 PatternWatch
- 475HeatersWatch
- 483Smallest Good BaseWatch
- 493Reverse PairsWatch
- 497Random Point in Non-overlapping RectanglesWatch
- 528Random Pick with WeightWatch
- 532K-diff Pairs in an ArrayWatch
- 540Single Element in a Sorted ArrayWatch
- 611Valid Triangle NumberWatch
- 633Sum of Square NumbersWatch
- 644Maximum Average Subarray IILocked
- 658Find K Closest ElementsWatch
- 668Kth Smallest Number in Multiplication TableWatch
- 702Search in a Sorted Array of Unknown SizeLocked
- 704Binary SearchWatch
- 710Random Pick with BlacklistWatch
- 713Subarray Product Less Than KWatch
- 718Maximum Length of Repeated SubarrayWatch
- 719Find K-th Smallest Pair DistanceWatch
- 729My Calendar IWatch
- 731My Calendar IIWatch
- 732My Calendar IIIWatch
- 744Find Smallest Letter Greater Than TargetWatch
- 754Reach a NumberWatch
- 774Minimize Max Distance to Gas StationLocked
- 778Swim in Rising WaterWatch
- 786K-th Smallest Prime FractionWatch
- 792Number of Matching SubsequencesWatch
- 793Preimage Size of Factorial Zeroes FunctionWatch
- 825Friends Of Appropriate AgesWatch
- 826Most Profit Assigning WorkWatch
- 852Peak Index in a Mountain ArrayWatch
- 862Shortest Subarray with Sum at Least KWatch
- 875Koko Eating BananasWatch
- 878Nth Magical NumberWatch
- 887Super Egg DropWatch
- 888Fair Candy SwapWatch
- 902Numbers At Most N Given Digit SetWatch
- 911Online ElectionWatch
- 981Time Based Key-Value StoreWatch
- 1004Max Consecutive Ones IIIWatch
- 1011Capacity To Ship Packages Within D DaysWatch
- 1027Longest Arithmetic SubsequenceWatch
- 1044Longest Duplicate SubstringWatch
- 1055Shortest Way to Form StringLocked
- 1060Missing Element in Sorted ArrayLocked
- 1062Longest Repeating SubstringLocked
- 1064Fixed PointLocked
- 1095Find in Mountain ArrayWatch
- 1099Two Sum Less Than KLocked
- 1102Path With Maximum Minimum ValueLocked
- 1146Snapshot ArrayWatch
- 1150Check If a Number Is Majority Element in a Sorted ArrayLocked
- 1157Online Majority Element In SubarrayWatch
- 1170Compare Strings by Frequency of the Smallest CharacterWatch
- 1182Shortest Distance to Target ColorLocked
- 1187Make Array Strictly IncreasingWatch
- 1198Find Smallest Common Element in All RowsLocked
- 1201Ugly Number IIIWatch
- 1208Get Equal Substrings Within BudgetWatch
- 1213Intersection of Three Sorted ArraysLocked
- 1214Two Sum BSTsLocked
- 1231Divide ChocolateLocked
- 1235Maximum Profit in Job SchedulingWatch
- 1237Find Positive Integer Solution for a Given EquationWatch
- 1268Search Suggestions SystemWatch
- 1283Find the Smallest Divisor Given a ThresholdWatch
- 1292Maximum Side Length of a Square with Sum Less than or Equal to ThresholdWatch
- 1300Sum of Mutated Array Closest to TargetWatch
- 1337The K Weakest Rows in a MatrixWatch
- 1346Check If N and Its Double ExistWatch
- 1348Tweet Counts Per FrequencyWatch
- 1351Count Negative Numbers in a Sorted MatrixWatch
- 1385Find the Distance Value Between Two ArraysWatch
- 1428Leftmost Column with at Least a OneLocked
- 1439Find the Kth Smallest Sum of a Matrix With Sorted RowsWatch
- 1477Find Two Non-overlapping Sub-arrays Each With Target SumWatch
- 1482Minimum Number of Days to Make m BouquetsWatch
- 1483Kth Ancestor of a Tree NodeWatch
- 1488Avoid Flood in The CityWatch
- 1498Number of Subsequences That Satisfy the Given Sum ConditionWatch
- 1508Range Sum of Sorted Subarray SumsWatch
- 1521Find a Value of a Mysterious Function Closest to TargetWatch
- 1533Find the Index of the Large IntegerLocked
- 1539Kth Missing Positive NumberWatch
- 1552Magnetic Force Between Two BallsWatch
- 1562Find Latest Group of Size MWatch
- 1574Shortest Subarray to be Removed to Make Array SortedWatch
- 1608Special Array With X Elements Greater Than or Equal XWatch
- 1618Maximum Font to Fit a Sentence in a ScreenLocked
- 1631Path With Minimum EffortWatch
- 1648Sell Diminishing-Valued Colored BallsWatch
- 1649Create Sorted Array through InstructionsWatch
- 1658Minimum Operations to Reduce X to ZeroWatch
- 1671Minimum Number of Removals to Make Mountain ArrayWatch
- 1712Ways to Split Array Into Three SubarraysWatch
- 1713Minimum Operations to Make a SubsequenceWatch
- 1739Building BoxesWatch
- 1751Maximum Number of Events That Can Be Attended IIWatch
- 1760Minimum Limit of Balls in a BagWatch
- 1782Count Pairs Of NodesWatch
- 1793Maximum Score of a Good SubarrayWatch
- 1802Maximum Value at a Given Index in a Bounded ArrayWatch
- 1818Minimum Absolute Sum DifferenceWatch
- 1838Frequency of the Most Frequent ElementWatch
- 1847Closest RoomWatch
- 1851Minimum Interval to Include Each QueryWatch
- 1855Maximum Distance Between a Pair of ValuesWatch
- 1862Sum of Floored PairsWatch
- 1870Minimum Speed to Arrive on TimeWatch
- 1885Count Pairs in Two ArraysLocked
- 1889Minimum Space Wasted From PackagingWatch
- 1891Cutting RibbonsLocked
- 1894Find the Student that Will Replace the ChalkWatch
- 1898Maximum Number of Removable CharactersWatch
- 1901Find a Peak Element IIWatch
- 1918Kth Smallest Subarray SumLocked
- 1923Longest Common SubpathWatch
- 1954Minimum Garden Perimeter to Collect Enough ApplesWatch
- 1956Minimum Time For K Virus Variants to SpreadLocked
- 1964Find the Longest Valid Obstacle Course at Each PositionWatch
- 1966Binary Searchable Numbers in an Unsorted ArrayLocked
- 1970Last Day Where You Can Still CrossWatch
- 2008Maximum Earnings From TaxiWatch
- 2009Minimum Number of Operations to Make Array ContinuousWatch
- 2024Maximize the Confusion of an ExamWatch
- 2031Count Subarrays With More Ones Than ZerosLocked
- 2035Partition Array Into Two Arrays to Minimize Sum DifferenceWatch
- 2040Kth Smallest Product of Two Sorted ArraysWatch
- 2054Two Best Non-Overlapping EventsWatch
- 2055Plates Between CandlesWatch
- 2064Minimized Maximum of Products Distributed to Any StoreWatch
- 2070Most Beautiful Item for Each QueryWatch
- 2071Maximum Number of Tasks You Can AssignWatch
- 2080Range Frequency QueriesWatch
- 2089Find Target Indices After Sorting ArrayWatch
- 2106Maximum Fruits Harvested After at Most K StepsWatch
- 2111Minimum Operations to Make the Array K-IncreasingWatch
- 2137Pour Water Between Buckets to Make Water Levels EqualLocked
- 2141Maximum Running Time of N ComputersWatch
- 2179Count Good Triplets in an ArrayWatch
- 2187Minimum Time to Complete TripsWatch
- 2223Sum of Scores of Built StringsWatch
- 2226Maximum Candies Allocated to K ChildrenWatch
- 2234Maximum Total Beauty of the GardensWatch
- 2250Count Number of Rectangles Containing Each PointWatch
- 2251Number of Flowers in Full BloomWatch
- 2258Escape the Spreading FireWatch
- 2271Maximum White Tiles Covered by a CarpetWatch
- 2286Booking Concert Tickets in GroupsWatch
- 2300Successful Pairs of Spells and PotionsWatch
- 2302Count Subarrays With Score Less Than KWatch
- 2332The Latest Time to Catch a BusWatch
- 2333Minimum Sum of Squared DifferenceWatch
- 2354Number of Excellent PairsWatch
- 2358Maximum Number of Groups Entering a CompetitionWatch
- 2387Median of a Row Wise Sorted MatrixLocked
- 2389Longest Subsequence With Limited SumWatch
- 2398Maximum Number of Robots Within BudgetWatch
- 2411Smallest Subarrays With Maximum Bitwise ORWatch
- 2424Longest Uploaded PrefixWatch
- 2426Number of Pairs Satisfying InequalityWatch
- 2439Minimize Maximum of ArrayWatch
- 2448Minimum Cost to Make Array EqualWatch
- 2454Next Greater Element IVWatch
- 2476Closest Nodes Queries in a Binary Search TreeWatch
- 2498Frog Jump IIWatch
- 2501Longest Square Streak in an ArrayWatch
- 2513Minimize the Maximum of Two ArraysWatch
- 2517Maximum Tastiness of Candy BasketWatch
- 2519Count the Number of K-Big IndicesLocked
- 2528Maximize the Minimum Powered CityWatch
- 2529Maximum Count of Positive Integer and Negative IntegerWatch
- 2540Minimum Common ValueWatch
- 2554Maximum Number of Integers to Choose From a Range IWatch
- 2555Maximize Win From Two SegmentsWatch
- 2557Maximum Number of Integers to Choose From a Range IILocked
- 2560House Robber IVWatch
- 2563Count the Number of Fair PairsWatch
- 2565Subsequence With the Minimum ScoreWatch
- 2576Find the Maximum Number of Marked IndicesWatch
- 2589Minimum Time to Complete All TasksWatch
- 2594Minimum Time to Repair CarsWatch
- 2601Prime Subtraction OperationWatch
- 2602Minimum Operations to Make All Array Elements EqualWatch
- 2604Minimum Time to Eat All GrainsLocked
- 2616Minimize the Maximum Difference of PairsWatch
- 2659Make Array EmptyWatch
- 2702Minimum Operations to Make Numbers Non-positiveLocked
- 2713Maximum Strictly Increasing Cells in a MatrixWatch
- 2736Maximum Sum QueriesWatch
- 2779Maximum Beauty of an Array After Applying OperationWatch
- 2790Maximum Number of Groups With Increasing LengthWatch
- 2812Find the Safest Path in a GridWatch
- 2817Minimum Absolute Difference Between Elements With ConstraintWatch
- 2819Minimum Relative Loss After Buying ChocolatesLocked
- 2824Count Pairs Whose Sum is Less than TargetWatch
- 2826Sorting Three GroupsWatch
- 2830Maximize the Profit as the SalesmanWatch
- 2831Find the Longest Equal SubarrayWatch
- 2838Maximum Coins Heroes Can CollectLocked
- 2856Minimum Array Length After Pair RemovalsWatch
- 2861Maximum Number of AlloysWatch
- 2926Maximum Balanced Subsequence SumWatch
- 2936Number of Equal Numbers BlocksLocked
- 2940Find Building Where Alice and Bob Can MeetWatch
- 2941Maximum GCD-Sum of a SubarrayLocked
- 2945Find Maximum Non-decreasing Array LengthWatch
- 2967Minimum Cost to Make Array EqualindromicWatch
- 2968Apply Operations to Maximize Frequency ScoreWatch
- 2970Count the Number of Incremovable Subarrays IWatch
- 2972Count the Number of Incremovable Subarrays IIWatch
- 2981Find Longest Special Substring That Occurs Thrice IWatch
- 2982Find Longest Special Substring That Occurs Thrice IIWatch
- 3006Find Beautiful Indices in the Given Array IWatch
- 3007Maximum Number That Sum of the Prices Is Less Than or Equal to KWatch
- 3008Find Beautiful Indices in the Given Array IIWatch
- 3048Earliest Second to Mark Indices IWatch
- 3049Earliest Second to Mark Indices IIWatch
- 3109Find the Index of PermutationLocked
- 3113Find the Number of Subarrays Where Boundary Elements Are MaximumWatch
- 3116Kth Smallest Amount With Single Denomination CombinationWatch
- 3117Minimum Sum of Values by Dividing ArrayWatch
- 3134Find the Median of the Uniqueness ArrayWatch
- 3135Equalize Strings by Adding or Removing Characters at EndsLocked
- 3143Maximum Points Inside the SquareWatch
- 3145Find Products of Elements of Big ArrayWatch
- 3152Special Array IIWatch
- 3155Maximum Number of Upgradable ServersLocked
- 3161Block Placement QueriesWatch
- 3171Find Subarray With Bitwise OR Closest to KWatch
- 3186Maximum Total Damage With Spell CastingWatch
- 3209Number of Subarrays With AND Value of KWatch
- 3231Minimum Number of Increasing Subsequence to Be RemovedLocked
- 3261Count Substrings That Satisfy K-Constraint IIWatch
- 3281Maximize Score of Numbers in RangesWatch
- 3288Length of the Longest Increasing PathWatch
- 3291Minimum Number of Valid Strings to Form Target IWatch
- 3292Minimum Number of Valid Strings to Form Target IIWatch
- 3296Minimum Number of Seconds to Make Mountain Height ZeroWatch
- 3312Sorted GCD Pair QueriesWatch
- 3323Minimize Connected Groups by Inserting IntervalLocked
- 3344Maximum Sized ArrayLocked
- 3346Maximum Frequency of an Element After Performing Operations IWatch
- 3347Maximum Frequency of an Element After Performing Operations IIWatch
- 3350Adjacent Increasing Subarrays Detection IIWatch
- 3356Zero Array Transformation IIWatch
- 3357Minimize the Maximum Adjacent Element DifferenceWatch
- 3369Design an Array Statistics Tracker Locked
- 3398Smallest Substring With Identical Characters IWatch
- 3399Smallest Substring With Identical Characters IIWatch
- 3413Maximum Coins From K Consecutive BagsWatch
- 3414Maximum Score of Non-overlapping IntervalsWatch
- 3419Minimize the Maximum Edge Weight of GraphWatch
- 3449Maximize the Minimum Game ScoreWatch
- 3453Separate Squares IWatch
- 3454Separate Squares IIWatch
- 3455Shortest Matching SubstringWatch
- 3464Maximize the Distance Between Points on a SquareWatch
- 3477Fruits Into Baskets IIWatch
- 3479Fruits Into Baskets IIIWatch
- 3488Closest Equal Element QueriesWatch
- 3501Maximize Active Section with Trade IIWatch
- 3508Implement RouterWatch
- 3520Minimum Threshold for Inversion Pairs CountLocked
- 3532Path Existence Queries in a Graph IWatch
- 3534Path Existence Queries in a Graph IIWatch
- 3585Find Weighted Median Node in TreeWatch
- 3600Maximize Spanning Tree Stability with UpgradesWatch
- 3605Minimum Stability Factor of ArrayWatch
- 3608Minimum Time for K Connected ComponentsWatch
- 3613Minimize Maximum Component CostWatch
- 3620Network Recovery PathwaysWatch
- 3633Earliest Finish Time for Land and Water Rides IWatch
- 3634Minimum Removals to Balance ArrayWatch
- 3635Earliest Finish Time for Land and Water Rides IIWatch
- 3636Threshold Majority QueriesWatch
- 3639Minimum Time to Activate StringWatch
- 3656Determine if a Simple Graph ExistsLocked
- 3661Maximum Walls Destroyed by RobotsWatch
- 3709Design Exam Scores TrackerWatch
- 3710Maximum Partition FactorWatch
- 3722Lexicographically Smallest String After ReverseWatch
- 3733Minimum Time to Complete All DeliveriesWatch
- 3735Lexicographically Smallest String After Reverse IILocked
- 3748Count Stable SubarraysWatch
- 3759Count Elements With at Least K Greater ValuesWatch
- 3762Minimum Operations to Equalize SubarraysWatch
- 3766Minimum Operations to Make Binary PalindromeWatch
- 3771Total Score of Dungeon RunsWatch
- 3801Minimum Cost to Merge Sorted ListsWatch
- 3807Minimum Cost to Repair Edges to Traverse a GraphLocked
- 3814Maximum Capacity Within BudgetWatch
- 3824Minimum K to Reduce Array Within LimitWatch
- 3825Longest Strictly Increasing Subsequence With Non-Zero Bitwise ANDWatch
- 3826Minimum Partition ScoreWatch
- 3896Minimum Operations to Transform Array into Alternating PrimeWatch
- 3911K-th Smallest Remaining Even Integer in Subarray QueriesWatch
- 3920Maximize Fixed Points After DeletionsWatch
- 3924Minimum Threshold Path With Limited Heavy EdgesWatch
- 3929Minimum Partition Score IILocked
- 3932Count K-th Roots in a RangeWatch
- 3934Smallest Unique SubarrayWatch
- 3956Maximum Sum of M Non-Overlapping Subarrays IWatch
- 3957Maximum Sum of M Non-Overlapping Subarrays IIWatch
- 3971Maximum Total ValueWatch
- 3985Palindromic Subarray SumWatch
- 4008Minimum Initial Strength to Defeat All MonstersWatch
- 4012Count of Unfinished Tasks After Each ShiftWatch
- 4016Maximum Area of Two Non-Overlapping Square SubmatricesWatch
- 4022K-th Digit in Infinite StringWatch
- 4031Find All Numbers Disappeared in an Array IIWatch
- 4051Count Subarrays with Distant SumsWatch
- 4053Minimum Operations to Make Every Element PalindromicWatch
- 4055Count Shadow Pairs IIWatch