Interview Prep/Companies/Cisco

Cisco

87 questions tracked84 with solutions

🔍

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

Showing 87 of 87 questions

MediumLongest Palindromic Substring✓ Our Solution

100

Two PointersStringDynamic Programming

LeetCode ↗36% acc.

MediumPredict the Winner✓ Our Solution

ArrayMathDynamic ProgrammingRecursion+1

LeetCode ↗56% acc.

MediumHouse Robber✓ Our Solution

ArrayDynamic Programming

LeetCode ↗52% acc.

EasyLucky Numbers in a Matrix✓ Our Solution

ArrayMatrix

LeetCode ↗80% acc.

MediumRotate Image✓ Our Solution

ArrayMathMatrix

LeetCode ↗78% acc.

MediumSpiral Matrix✓ Our Solution

ArrayMatrixSimulation

LeetCode ↗54% acc.

EasyFizz Buzz✓ Our Solution

MathStringSimulation

LeetCode ↗74% acc.

MediumLRU Cache✓ Our Solution

Hash TableLinked ListDesignDoubly-Linked List

LeetCode ↗45% acc.

MediumSnakes and Ladders✓ Our Solution

ArrayBreadth-First SearchMatrix

LeetCode ↗48% acc.

EasyNumber of Valid Words in a Sentence✓ Our Solution

String

LeetCode ↗30% acc.

MediumFind Third Transaction

Database

LeetCode ↗54% acc.

EasyMaximum Difference Between Increasing Elements✓ Our Solution

Array

LeetCode ↗66% acc.

MediumMerge Intervals✓ Our Solution

ArraySorting

LeetCode ↗49% acc.

MediumMaximum Subarray✓ Our Solution

ArrayDivide and ConquerDynamic Programming

LeetCode ↗52% acc.

MediumImplement Router✓ Our Solution

ArrayHash TableBinary SearchDesign+2

LeetCode ↗22% acc.

MediumFind the Largest Area of Square Inside Two Rectangles✓ Our Solution

ArrayMathGeometry

LeetCode ↗45% acc.

HardMinimum Cost to Make Array Equal✓ Our Solution

ArrayBinary SearchGreedySorting+1

LeetCode ↗46% acc.

HardWord Search II✓ Our Solution

ArrayStringBacktrackingTrie+1

LeetCode ↗37% acc.

MediumNumber of Equal Count Substrings

Hash TableStringSliding WindowCounting

LeetCode ↗45% acc.

HardSum of k-Mirror Numbers✓ Our Solution

MathEnumeration

LeetCode ↗42% acc.

EasyCheck if Binary String Has at Most One Segment of Ones✓ Our Solution

String

LeetCode ↗39% acc.

HardMax Points on a Line✓ Our Solution

ArrayHash TableMathGeometry

LeetCode ↗29% acc.

EasyHappy Number✓ Our Solution

Hash TableMathTwo Pointers

LeetCode ↗58% acc.

MediumStone Game✓ Our Solution

ArrayMathDynamic ProgrammingGame Theory

LeetCode ↗72% acc.

EasyTwo Sum✓ Our Solution

ArrayHash Table

LeetCode ↗56% acc.

HardCherry Pickup✓ Our Solution

ArrayDynamic ProgrammingMatrix

LeetCode ↗38% acc.

EasyValid Parentheses✓ Our Solution

StringStack

LeetCode ↗42% acc.

HardTrapping Rain Water✓ Our Solution

ArrayTwo PointersDynamic ProgrammingStack+1

LeetCode ↗65% acc.

MediumLongest Substring Without Repeating Characters✓ Our Solution

Hash TableStringSliding Window

LeetCode ↗37% acc.

EasyLinked List Cycle✓ Our Solution

Hash TableLinked ListTwo Pointers

LeetCode ↗53% acc.

MediumDecode String✓ Our Solution

StringStackRecursion

LeetCode ↗61% acc.

EasyBest Time to Buy and Sell Stock✓ Our Solution

ArrayDynamic Programming

LeetCode ↗55% acc.

HardRemove Boxes✓ Our Solution

ArrayDynamic ProgrammingMemoization

LeetCode ↗48% acc.

EasyMerge Sorted Array✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗53% acc.

HardStrange Printer✓ Our Solution

StringDynamic Programming

LeetCode ↗61% acc.

MediumLongest Consecutive Sequence✓ Our Solution

ArrayHash TableUnion Find

LeetCode ↗47% acc.

MediumLetter Combinations of a Phone Number✓ Our Solution

Hash TableStringBacktracking

LeetCode ↗64% acc.

EasyMove Zeroes✓ Our Solution

ArrayTwo Pointers

LeetCode ↗63% acc.

Medium3Sum✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗37% acc.

EasyReverse Linked List✓ Our Solution

Linked ListRecursion

LeetCode ↗79% acc.

MediumNumber of Islands✓ Our Solution

ArrayDepth-First SearchBreadth-First SearchUnion Find+1

LeetCode ↗62% acc.

MediumSearch a 2D Matrix✓ Our Solution

ArrayBinary SearchMatrix

LeetCode ↗52% acc.

MediumWord Search✓ Our Solution

ArrayStringBacktrackingDepth-First Search+1

LeetCode ↗45% acc.

MediumGas Station✓ Our Solution

ArrayGreedy

LeetCode ↗46% acc.

EasyRemove Duplicates from Sorted Array✓ Our Solution

ArrayTwo Pointers

LeetCode ↗60% acc.

MediumMeeting Rooms II

ArrayTwo PointersGreedySorting+2

LeetCode ↗52% acc.

EasyValid Palindrome✓ Our Solution

Two PointersString

LeetCode ↗51% acc.

MediumPermutation in String✓ Our Solution

Hash TableTwo PointersStringSliding Window

LeetCode ↗47% acc.

HardMerge k Sorted Lists✓ Our Solution

Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort

LeetCode ↗57% acc.

MediumGroup Anagrams✓ Our Solution

ArrayHash TableStringSorting

LeetCode ↗71% acc.

EasySingle Number✓ Our Solution

ArrayBit Manipulation

LeetCode ↗76% acc.

HardFind Servers That Handled Most Number of Requests✓ Our Solution

ArrayGreedyHeap (Priority Queue)Ordered Set

LeetCode ↗44% acc.

MediumInsert Delete GetRandom O(1)✓ Our Solution

ArrayHash TableMathDesign+1

LeetCode ↗55% acc.

MediumValidate IP Address✓ Our Solution

String

LeetCode ↗28% acc.

MediumTop K Frequent Elements✓ Our Solution

ArrayHash TableDivide and ConquerSorting+4

LeetCode ↗65% acc.

MediumAdd Two Numbers✓ Our Solution

Linked ListMathRecursion

LeetCode ↗46% acc.

MediumExpressive Words✓ Our Solution

ArrayTwo PointersString

LeetCode ↗46% acc.

MediumEdit Distance✓ Our Solution

StringDynamic Programming

LeetCode ↗59% acc.

MediumSubarray Sum Equals K✓ Our Solution

ArrayHash TablePrefix Sum

LeetCode ↗45% acc.

EasyRising Temperature✓ Our Solution

Database

LeetCode ↗50% acc.

EasyCan Place Flowers✓ Our Solution

ArrayGreedy

LeetCode ↗29% acc.

MediumKth Smallest Element in a BST✓ Our Solution

TreeDepth-First SearchBinary Search TreeBinary Tree

LeetCode ↗75% acc.

EasyMissing Number✓ Our Solution

ArrayHash TableMathBinary Search+2

LeetCode ↗70% acc.

MediumFind Minimum in Rotated Sorted Array✓ Our Solution

ArrayBinary Search

LeetCode ↗53% acc.

MediumUnique Paths✓ Our Solution

MathDynamic ProgrammingCombinatorics

LeetCode ↗66% acc.

MediumZigzag Conversion✓ Our Solution

String

LeetCode ↗52% acc.

MediumPermutations✓ Our Solution

ArrayBacktracking

LeetCode ↗81% acc.

HardSliding Window Maximum✓ Our Solution

ArrayQueueSliding WindowHeap (Priority Queue)+1

LeetCode ↗48% acc.

MediumCompare Version Numbers✓ Our Solution

Two PointersString

LeetCode ↗42% acc.

HardLargest Rectangle in Histogram✓ Our Solution

ArrayStackMonotonic Stack

LeetCode ↗47% acc.

MediumLongest Palindromic Subsequence✓ Our Solution

StringDynamic Programming

LeetCode ↗64% acc.

MediumMin Stack✓ Our Solution

StackDesign

LeetCode ↗56% acc.

MediumRestore IP Addresses✓ Our Solution

StringBacktracking

LeetCode ↗53% acc.

MediumReverse Words in a String✓ Our Solution

Two PointersString

LeetCode ↗52% acc.

EasyPascal's Triangle✓ Our Solution

ArrayDynamic Programming

LeetCode ↗77% acc.

MediumJump Game✓ Our Solution

ArrayDynamic ProgrammingGreedy

LeetCode ↗39% acc.

HardCount of Integers✓ Our Solution

MathStringDynamic Programming

LeetCode ↗37% acc.

EasyClimbing Stairs✓ Our Solution

MathDynamic ProgrammingMemoization

LeetCode ↗54% acc.

MediumPalindromic Substrings✓ Our Solution

Two PointersStringDynamic Programming

LeetCode ↗72% acc.

MediumDesign Browser History✓ Our Solution

ArrayLinked ListStackDesign+2

LeetCode ↗78% acc.

EasyMaximum Product of Two Elements in an Array✓ Our Solution

ArraySortingHeap (Priority Queue)

LeetCode ↗83% acc.

MediumBeautiful Arrangement✓ Our Solution

ArrayDynamic ProgrammingBacktrackingBit Manipulation+1

LeetCode ↗65% acc.

MediumRemove K Digits✓ Our Solution

StringStackGreedyMonotonic Stack

LeetCode ↗35% acc.

MediumProduct of Array Except Self✓ Our Solution

ArrayPrefix Sum

LeetCode ↗68% acc.

EasyNumber of 1 Bits✓ Our Solution

Divide and ConquerBit Manipulation

LeetCode ↗75% acc.

MediumUnique Paths II✓ Our Solution

ArrayDynamic ProgrammingMatrix

LeetCode ↗43% acc.

EasyTwo Sum IV - Input is a BST✓ Our Solution

Hash TableTwo PointersTreeDepth-First Search+3

LeetCode ↗62% acc.