Interview Prep/Companies/Snap

Snap

100 questions tracked83 with solutions

🔍

Frequency scoreSorted highest → lowest frequency✓ Our Solution = we have a detailed walkthrough

Showing 100 of 100 questions

MediumLRU Cache✓ Our Solution

100

Hash TableLinked ListDesignDoubly-Linked List

LeetCode ↗45% acc.

HardMinimum Window Substring✓ Our Solution

Hash TableStringSliding Window

LeetCode ↗45% acc.

MediumMeeting Rooms II

ArrayTwo PointersGreedySorting+2

LeetCode ↗52% acc.

HardWord Ladder✓ Our Solution

Hash TableStringBreadth-First Search

LeetCode ↗43% acc.

MediumCourse Schedule II✓ Our Solution

Depth-First SearchBreadth-First SearchGraphTopological Sort

LeetCode ↗53% acc.

HardMaking A Large Island✓ Our Solution

ArrayDepth-First SearchBreadth-First SearchUnion Find+1

LeetCode ↗55% acc.

HardWord Break II✓ Our Solution

ArrayHash TableStringDynamic Programming+3

LeetCode ↗54% acc.

MediumDesign Log Storage System

Hash TableStringDesignOrdered Set

LeetCode ↗59% acc.

MediumNumber of Islands✓ Our Solution

ArrayDepth-First SearchBreadth-First SearchUnion Find+1

LeetCode ↗62% acc.

MediumValid Sudoku✓ Our Solution

ArrayHash TableMatrix

LeetCode ↗62% acc.

MediumNumber of Distinct Islands

Hash TableDepth-First SearchBreadth-First SearchUnion Find+1

LeetCode ↗62% acc.

MediumOne Edit Distance

Two PointersString

LeetCode ↗34% acc.

MediumMin Stack✓ Our Solution

StackDesign

LeetCode ↗56% acc.

HardBus Routes✓ Our Solution

ArrayHash TableBreadth-First Search

LeetCode ↗47% acc.

HardAlien Dictionary

ArrayStringDepth-First SearchBreadth-First Search+2

LeetCode ↗37% acc.

HardBurst Balloons✓ Our Solution

ArrayDynamic Programming

LeetCode ↗61% acc.

EasyClosest Binary Search Tree Value

Binary SearchTreeDepth-First SearchBinary Search Tree+1

LeetCode ↗50% acc.

MediumGame of Life✓ Our Solution

ArrayMatrixSimulation

LeetCode ↗71% acc.

HardBricks Falling When Hit✓ Our Solution

ArrayUnion FindMatrix

LeetCode ↗36% acc.

EasyPower of Two✓ Our Solution

MathBit ManipulationRecursion

LeetCode ↗48% acc.

HardLeast Operators to Express Number✓ Our Solution

MathDynamic ProgrammingMemoization

LeetCode ↗48% acc.

MediumCombination Sum IV✓ Our Solution

ArrayDynamic Programming

LeetCode ↗55% acc.

MediumLargest Merge Of Two Strings✓ Our Solution

Two PointersStringGreedy

LeetCode ↗51% acc.

HardFrog Jump✓ Our Solution

ArrayDynamic Programming

LeetCode ↗47% acc.

MediumTernary Expression Parser

StringStackRecursion

LeetCode ↗62% acc.

MediumString Compression✓ Our Solution

Two PointersString

LeetCode ↗58% acc.

HardWord Abbreviation

ArrayStringGreedyTrie+1

LeetCode ↗62% acc.

MediumBinary Tree Vertical Order Traversal

Hash TableTreeDepth-First SearchBreadth-First Search+2

LeetCode ↗57% acc.

MediumRemove K Digits✓ Our Solution

StringStackGreedyMonotonic Stack

LeetCode ↗35% acc.

MediumCombination Sum II✓ Our Solution

ArrayBacktracking

LeetCode ↗58% acc.

EasyReverse Linked List✓ Our Solution

Linked ListRecursion

LeetCode ↗79% acc.

HardWildcard Matching✓ Our Solution

StringDynamic ProgrammingGreedyRecursion

LeetCode ↗30% acc.

MediumReverse Words in a String✓ Our Solution

Two PointersString

LeetCode ↗52% acc.

HardSudoku Solver✓ Our Solution

ArrayHash TableBacktrackingMatrix

LeetCode ↗64% acc.

MediumCombination Sum✓ Our Solution

ArrayBacktracking

LeetCode ↗75% acc.

MediumUnique Binary Search Trees✓ Our Solution

MathDynamic ProgrammingTreeBinary Search Tree+1

LeetCode ↗62% acc.

MediumBasic Calculator II✓ Our Solution

MathStringStack

LeetCode ↗46% acc.

MediumWord Search✓ Our Solution

ArrayStringBacktrackingDepth-First Search+1

LeetCode ↗45% acc.

MediumCheapest Flights Within K Stops✓ Our Solution

Dynamic ProgrammingDepth-First SearchBreadth-First SearchGraph+2

LeetCode ↗40% acc.

HardShortest Path in a Grid with Obstacles Elimination✓ Our Solution

ArrayBreadth-First SearchMatrix

LeetCode ↗46% acc.

MediumDecode Ways✓ Our Solution

StringDynamic Programming

LeetCode ↗37% acc.

HardValid Arrangement of Pairs✓ Our Solution

Depth-First SearchGraphEulerian Circuit

LeetCode ↗66% acc.

HardBest Time to Buy and Sell Stock III✓ Our Solution

ArrayDynamic Programming

LeetCode ↗51% acc.

MediumInsert Delete GetRandom O(1)✓ Our Solution

ArrayHash TableMathDesign+1

LeetCode ↗55% acc.

MediumEvaluate Division✓ Our Solution

ArrayStringDepth-First SearchBreadth-First Search+3

LeetCode ↗63% acc.

MediumMerge Intervals✓ Our Solution

ArraySorting

LeetCode ↗49% acc.

MediumScore of Parentheses✓ Our Solution

StringStack

LeetCode ↗64% acc.

MediumAmount of Time for Binary Tree to Be Infected✓ Our Solution

Hash TableTreeDepth-First SearchBreadth-First Search+1

LeetCode ↗64% acc.

HardDesign a Text Editor✓ Our Solution

Linked ListStringStackDesign+2

LeetCode ↗47% acc.

HardParallel Courses III✓ Our Solution

ArrayDynamic ProgrammingGraphTopological Sort

LeetCode ↗67% acc.

HardNumber of Islands II

ArrayHash TableUnion Find

LeetCode ↗40% acc.

MediumMinimum Number of Keypresses

Hash TableStringGreedySorting+1

LeetCode ↗71% acc.

HardMinimum Time to Complete All Tasks✓ Our Solution

ArrayBinary SearchStackGreedy+1

LeetCode ↗38% acc.

MediumK Closest Points to Origin✓ Our Solution

ArrayMathDivide and ConquerGeometry+3

LeetCode ↗68% acc.

MediumShortest Bridge✓ Our Solution

ArrayDepth-First SearchBreadth-First SearchMatrix

LeetCode ↗59% acc.

MediumGroup Anagrams✓ Our Solution

ArrayHash TableStringSorting

LeetCode ↗71% acc.

HardBasic Calculator III

MathStringStackRecursion

LeetCode ↗52% acc.

MediumAccounts Merge✓ Our Solution

ArrayHash TableStringDepth-First Search+3

LeetCode ↗60% acc.

HardMedian of Two Sorted Arrays✓ Our Solution

ArrayBinary SearchDivide and Conquer

LeetCode ↗44% acc.

MediumProduct of Array Except Self✓ Our Solution

ArrayPrefix Sum

LeetCode ↗68% acc.

MediumFind Peak Element✓ Our Solution

ArrayBinary Search

LeetCode ↗47% acc.

MediumJump Game III✓ Our Solution

ArrayDepth-First SearchBreadth-First Search

LeetCode ↗66% acc.

EasyMerge Two Sorted Lists✓ Our Solution

Linked ListRecursion

LeetCode ↗67% acc.

MediumMax Consecutive Ones III✓ Our Solution

ArrayBinary SearchSliding WindowPrefix Sum

LeetCode ↗66% acc.

MediumEdit Distance✓ Our Solution

StringDynamic Programming

LeetCode ↗59% acc.

MediumMinimum Remove to Make Valid Parentheses✓ Our Solution

StringStack

LeetCode ↗71% acc.

MediumTop K Frequent Elements✓ Our Solution

ArrayHash TableDivide and ConquerSorting+4

LeetCode ↗65% acc.

HardBinary Tree Maximum Path Sum✓ Our Solution

Dynamic ProgrammingTreeDepth-First SearchBinary Tree

LeetCode ↗41% acc.

MediumCourse Schedule✓ Our Solution

Depth-First SearchBreadth-First SearchGraphTopological Sort

LeetCode ↗49% acc.

HardReconstruct Itinerary✓ Our Solution

Depth-First SearchGraphEulerian Circuit

LeetCode ↗44% acc.

MediumMinimum Area Rectangle✓ Our Solution

ArrayHash TableMathGeometry+1

LeetCode ↗55% acc.

HardShortest Distance from All Buildings

ArrayBreadth-First SearchMatrix

LeetCode ↗44% acc.

MediumSearch a 2D Matrix II✓ Our Solution

ArrayBinary SearchDivide and ConquerMatrix

LeetCode ↗55% acc.

EasyVerifying an Alien Dictionary✓ Our Solution

ArrayHash TableString

LeetCode ↗56% acc.

EasyBest Time to Buy and Sell Stock✓ Our Solution

ArrayDynamic Programming

LeetCode ↗55% acc.

MediumLongest String Chain✓ Our Solution

ArrayHash TableTwo PointersString+2

LeetCode ↗62% acc.

MediumCar Fleet✓ Our Solution

ArrayStackSortingMonotonic Stack

LeetCode ↗53% acc.

MediumKnight Dialer✓ Our Solution

Dynamic Programming

LeetCode ↗61% acc.

MediumSearch a 2D Matrix✓ Our Solution

ArrayBinary SearchMatrix

LeetCode ↗52% acc.

MediumThe Maze

ArrayDepth-First SearchBreadth-First SearchMatrix

LeetCode ↗60% acc.

MediumNested List Weight Sum

Depth-First SearchBreadth-First Search

LeetCode ↗86% acc.

MediumReorder Data in Log Files✓ Our Solution

ArrayStringSorting

LeetCode ↗57% acc.

HardMax Stack

Linked ListStackDesignDoubly-Linked List+1

LeetCode ↗46% acc.

MediumMovie Rating✓ Our Solution

Database

LeetCode ↗42% acc.

MediumRandom Pick with Weight✓ Our Solution

ArrayMathBinary SearchPrefix Sum+1

LeetCode ↗48% acc.

MediumSubarray Sum Equals K✓ Our Solution

ArrayHash TablePrefix Sum

LeetCode ↗45% acc.

MediumMaximize Distance to Closest Person✓ Our Solution

Array

LeetCode ↗49% acc.

MediumSearch Suggestions System✓ Our Solution

ArrayStringBinary SearchTrie+2

LeetCode ↗65% acc.

HardMinimum Number of Refueling Stops✓ Our Solution

ArrayDynamic ProgrammingGreedyHeap (Priority Queue)

LeetCode ↗41% acc.

MediumFlip String to Monotone Increasing✓ Our Solution

StringDynamic Programming

LeetCode ↗62% acc.

MediumMinimum Cost For Tickets✓ Our Solution

ArrayDynamic Programming

LeetCode ↗67% acc.

MediumMinimize Result by Adding Parentheses to Expression✓ Our Solution

StringEnumeration

LeetCode ↗68% acc.

HardBuild Binary Expression Tree From Infix Expression

StringStackTreeBinary Tree

LeetCode ↗62% acc.

EasyComplement of Base 10 Integer✓ Our Solution

Bit Manipulation

LeetCode ↗61% acc.

HardMaximum Frequency Stack✓ Our Solution

Hash TableStackDesignOrdered Set

LeetCode ↗66% acc.

MediumCustom Sort String✓ Our Solution

Hash TableStringSorting

LeetCode ↗72% acc.

MediumDesign Browser History✓ Our Solution

ArrayLinked ListStackDesign+2

LeetCode ↗78% acc.

HardLongest Increasing Path in a Matrix✓ Our Solution

ArrayDynamic ProgrammingDepth-First SearchBreadth-First Search+4

LeetCode ↗55% acc.

MediumExclusive Time of Functions✓ Our Solution

ArrayStack

LeetCode ↗65% acc.

100

MediumMaximum Subarray✓ Our Solution

ArrayDivide and ConquerDynamic Programming

LeetCode ↗52% acc.