Interview Prep/Companies/Capital One

Capital One

47 questions tracked44 with solutions

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

Showing 47 of 47 questions

MediumSimple Bank System✓ Our Solution

100

ArrayHash TableDesignSimulation

LeetCode ↗61% acc.

MediumSpiral Matrix✓ Our Solution

ArrayMatrixSimulation

LeetCode ↗54% acc.

HardBlock Placement Queries✓ Our Solution

ArrayBinary SearchBinary Indexed TreeSegment Tree

LeetCode ↗17% acc.

HardText Justification✓ Our Solution

ArrayStringSimulation

LeetCode ↗48% acc.

MediumMinimum Operations to Write the Letter Y on a Grid✓ Our Solution

ArrayHash TableMatrixCounting

LeetCode ↗62% acc.

MediumCandy Crush

ArrayTwo PointersMatrixSimulation

LeetCode ↗77% acc.

MediumCount Alternating Subarrays✓ Our Solution

ArrayMath

LeetCode ↗56% acc.

MediumRotate Image✓ Our Solution

ArrayMathMatrix

LeetCode ↗78% acc.

MediumFour Divisors✓ Our Solution

ArrayMath

LeetCode ↗45% acc.

MediumSimplify Path✓ Our Solution

StringStack

LeetCode ↗48% acc.

EasyCount Operations to Obtain Zero✓ Our Solution

MathSimulation

LeetCode ↗75% acc.

MediumLongest Continuous Subarray With Absolute Diff Less Than or Equal to Limit✓ Our Solution

ArrayQueueSliding WindowHeap (Priority Queue)+2

LeetCode ↗57% acc.

HardSplit Message Based on Limit✓ Our Solution

StringBinary SearchEnumeration

LeetCode ↗43% acc.

MediumRotating the Box✓ Our Solution

ArrayTwo PointersMatrix

LeetCode ↗79% acc.

MediumNumber of Black Blocks✓ Our Solution

ArrayHash TableEnumeration

LeetCode ↗39% acc.

EasyBest Time to Buy and Sell Stock✓ Our Solution

ArrayDynamic Programming

LeetCode ↗55% acc.

HardNumber of Flowers in Full Bloom✓ Our Solution

ArrayHash TableBinary SearchSorting+2

LeetCode ↗57% acc.

MediumFind the Length of the Longest Common Prefix✓ Our Solution

ArrayHash TableStringTrie

LeetCode ↗56% acc.

HardCount Prefix and Suffix Pairs II✓ Our Solution

ArrayStringTrieRolling Hash+2

LeetCode ↗27% acc.

HardRemove Boxes✓ Our Solution

ArrayDynamic ProgrammingMemoization

LeetCode ↗48% acc.

HardLargest Rectangle in Histogram✓ Our Solution

ArrayStackMonotonic Stack

LeetCode ↗47% acc.

MediumCoin Change✓ Our Solution

ArrayDynamic ProgrammingBreadth-First Search

LeetCode ↗46% acc.

MediumDesign File System

Hash TableStringDesignTrie

LeetCode ↗64% acc.

MediumWord Search✓ Our Solution

ArrayStringBacktrackingDepth-First Search+1

LeetCode ↗45% acc.

MediumNumber of Subarrays That Match a Pattern I✓ Our Solution

ArrayRolling HashString MatchingHash Function

LeetCode ↗67% acc.

EasyPalindrome Number✓ Our Solution

Math

LeetCode ↗59% acc.

EasyAdd Strings✓ Our Solution

MathStringSimulation

LeetCode ↗52% acc.

MediumMerge Intervals✓ Our Solution

ArraySorting

LeetCode ↗49% acc.

MediumNumber of Islands✓ Our Solution

ArrayDepth-First SearchBreadth-First SearchUnion Find+1

LeetCode ↗62% acc.

MediumAdd Two Numbers✓ Our Solution

Linked ListMathRecursion

LeetCode ↗46% acc.

EasyBinary Tree Paths✓ Our Solution

StringBacktrackingTreeDepth-First Search+1

LeetCode ↗67% acc.

MediumNon-overlapping Intervals✓ Our Solution

ArrayDynamic ProgrammingGreedySorting

LeetCode ↗56% acc.

HardWord Search II✓ Our Solution

ArrayStringBacktrackingTrie+1

LeetCode ↗37% acc.

MediumMeeting Rooms II

ArrayTwo PointersGreedySorting+2

LeetCode ↗52% acc.

MediumRotate Array✓ Our Solution

ArrayMathTwo Pointers

LeetCode ↗43% acc.

MediumMinimum Absolute Difference Between Elements With Constraint✓ Our Solution

ArrayBinary SearchOrdered Set

LeetCode ↗34% acc.

HardReverse Nodes in k-Group✓ Our Solution

Linked ListRecursion

LeetCode ↗63% acc.

MediumK-diff Pairs in an Array✓ Our Solution

ArrayHash TableTwo PointersBinary Search+1

LeetCode ↗45% acc.

MediumNumber of Adjacent Elements With the Same Color✓ Our Solution

Array

LeetCode ↗56% acc.

MediumBest Time to Buy and Sell Stock II✓ Our Solution

ArrayDynamic ProgrammingGreedy

LeetCode ↗70% acc.

EasyCount Prefix and Suffix Pairs I✓ Our Solution

ArrayStringTrieRolling Hash+2

LeetCode ↗78% acc.

EasyValid Parentheses✓ Our Solution

StringStack

LeetCode ↗42% acc.

EasyMerge Two Sorted Lists✓ Our Solution

Linked ListRecursion

LeetCode ↗67% acc.

MediumGet Biggest Three Rhombus Sums in a Grid✓ Our Solution

ArrayMathSortingHeap (Priority Queue)+2

LeetCode ↗49% acc.

EasyRoman to Integer✓ Our Solution

Hash TableMathString

LeetCode ↗65% acc.

HardFind Servers That Handled Most Number of Requests✓ Our Solution

ArrayGreedyHeap (Priority Queue)Ordered Set

LeetCode ↗44% acc.

MediumLRU Cache✓ Our Solution

Hash TableLinked ListDesignDoubly-Linked List

LeetCode ↗45% acc.