tcs

100 questions tracked100 with solutions

🔍

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

Showing 100 of 100 questions

EasyTwo Sum✓ Our Solution

ArrayHash Table

LeetCode ↗56% acc.

EasyPalindrome Number✓ Our Solution

Math

LeetCode ↗59% acc.

EasyMajority Element✓ Our Solution

ArrayHash TableDivide and ConquerSorting+1

LeetCode ↗66% acc.

EasyBest Time to Buy and Sell Stock✓ Our Solution

ArrayDynamic Programming

LeetCode ↗55% acc.

MediumMaximum Subarray✓ Our Solution

ArrayDivide and ConquerDynamic Programming

LeetCode ↗52% acc.

EasyLongest Common Prefix✓ Our Solution

StringTrie

LeetCode ↗45% acc.

EasyValid Parentheses✓ Our Solution

StringStack

LeetCode ↗42% acc.

EasyFibonacci Number✓ Our Solution

MathDynamic ProgrammingRecursionMemoization

LeetCode ↗73% acc.

MediumSubarray Sum Equals K✓ Our Solution

ArrayHash TablePrefix Sum

LeetCode ↗45% acc.

EasyMove Zeroes✓ Our Solution

ArrayTwo Pointers

LeetCode ↗63% acc.

MediumRotate Array✓ Our Solution

ArrayMathTwo Pointers

LeetCode ↗43% acc.

EasyCount the Digits That Divide a Number✓ Our Solution

Math

LeetCode ↗86% acc.

MediumJump Game✓ Our Solution

ArrayDynamic ProgrammingGreedy

LeetCode ↗39% acc.

EasyMaximum Ascending Subarray Sum✓ Our Solution

Array

LeetCode ↗66% acc.

MediumReverse Integer✓ Our Solution

Math

LeetCode ↗30% acc.

EasyMerge Sorted Array✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗53% acc.

MediumUnique Paths✓ Our Solution

MathDynamic ProgrammingCombinatorics

LeetCode ↗66% acc.

EasyRoman to Integer✓ Our Solution

Hash TableMathString

LeetCode ↗65% acc.

EasyRemove Letter To Equalize Frequency✓ Our Solution

Hash TableStringCounting

LeetCode ↗18% acc.

EasyMinimum Cuts to Divide a Circle✓ Our Solution

MathGeometry

LeetCode ↗55% acc.

EasySingle Number✓ Our Solution

ArrayBit Manipulation

LeetCode ↗76% acc.

EasyValid Anagram✓ Our Solution

Hash TableStringSorting

LeetCode ↗67% acc.

EasyMinimum Operations to Exceed Threshold Value I✓ Our Solution

Array

LeetCode ↗86% acc.

MediumMinimum Operations to Exceed Threshold Value II✓ Our Solution

ArrayHeap (Priority Queue)Simulation

LeetCode ↗46% acc.

HardPalindrome Partitioning IV✓ Our Solution

StringDynamic Programming

LeetCode ↗45% acc.

Medium3Sum✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗37% acc.

MediumBitwise ORs of Subarrays✓ Our Solution

ArrayDynamic ProgrammingBit Manipulation

LeetCode ↗41% acc.

EasyClimbing Stairs✓ Our Solution

MathDynamic ProgrammingMemoization

LeetCode ↗54% acc.

EasyFind the Index of the First Occurrence in a String✓ Our Solution

Two PointersStringString Matching

LeetCode ↗45% acc.

EasyRemove Duplicates from Sorted Array✓ Our Solution

ArrayTwo Pointers

LeetCode ↗60% acc.

MediumLongest Palindromic Substring✓ Our Solution

Two PointersStringDynamic Programming

LeetCode ↗36% acc.

MediumContainer With Most Water✓ Our Solution

ArrayTwo PointersGreedy

LeetCode ↗58% acc.

EasyPlus One✓ Our Solution

ArrayMath

LeetCode ↗48% acc.

MediumPow(x, n)✓ Our Solution

MathRecursion

LeetCode ↗37% acc.

MediumSecond Highest Salary✓ Our Solution

Database

LeetCode ↗44% acc.

EasyLength of Last Word✓ Our Solution

String

LeetCode ↗56% acc.

MediumSort Colors✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗68% acc.

HardSliding Window Maximum✓ Our Solution

ArrayQueueSliding WindowHeap (Priority Queue)+1

LeetCode ↗48% acc.

EasyContains Duplicate✓ Our Solution

ArrayHash TableSorting

LeetCode ↗63% acc.

EasyHappy Number✓ Our Solution

Hash TableMathTwo Pointers

LeetCode ↗58% acc.

MediumReverse Words in a String✓ Our Solution

Two PointersString

LeetCode ↗52% acc.

HardTrapping Rain Water✓ Our Solution

ArrayTwo PointersDynamic ProgrammingStack+1

LeetCode ↗65% acc.

MediumSpiral Matrix✓ Our Solution

ArrayMatrixSimulation

LeetCode ↗54% acc.

EasyMissing Number✓ Our Solution

ArrayHash TableMathBinary Search+2

LeetCode ↗70% acc.

MediumBest Time to Buy and Sell Stock II✓ Our Solution

ArrayDynamic ProgrammingGreedy

LeetCode ↗70% acc.

MediumAdd Two Numbers✓ Our Solution

Linked ListMathRecursion

LeetCode ↗46% acc.

MediumSet Matrix Zeroes✓ Our Solution

ArrayHash TableMatrix

LeetCode ↗61% acc.

EasySqrt(x)✓ Our Solution

MathBinary Search

LeetCode ↗40% acc.

MediumMax Consecutive Ones III✓ Our Solution

ArrayBinary SearchSliding WindowPrefix Sum

LeetCode ↗66% acc.

EasyCheck if Array Is Sorted and Rotated✓ Our Solution

Array

LeetCode ↗55% acc.

MediumLongest Substring Without Repeating Characters✓ Our Solution

Hash TableStringSliding Window

LeetCode ↗37% acc.

EasyToeplitz Matrix✓ Our Solution

ArrayMatrix

LeetCode ↗69% acc.

EasyMerge Two Sorted Lists✓ Our Solution

Linked ListRecursion

LeetCode ↗67% acc.

MediumSingle Element in a Sorted Array✓ Our Solution

ArrayBinary Search

LeetCode ↗59% acc.

EasyFizz Buzz✓ Our Solution

MathStringSimulation

LeetCode ↗74% acc.

EasyReverse String✓ Our Solution

Two PointersString

LeetCode ↗80% acc.

EasyN-th Tribonacci Number✓ Our Solution

MathDynamic ProgrammingMemoization

LeetCode ↗64% acc.

EasyAdd Binary✓ Our Solution

MathStringBit ManipulationSimulation

LeetCode ↗56% acc.

MediumK-diff Pairs in an Array✓ Our Solution

ArrayHash TableTwo PointersBinary Search+1

LeetCode ↗45% acc.

EasyFind Customer Referee✓ Our Solution

Database

LeetCode ↗72% acc.

EasyArticle Views I✓ Our Solution

Database

LeetCode ↗77% acc.

HardDepartment Top Three Salaries✓ Our Solution

Database

LeetCode ↗58% acc.

Medium4Sum✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗38% acc.

EasyReverse Linked List✓ Our Solution

Linked ListRecursion

LeetCode ↗79% acc.

MediumGenerate Parentheses✓ Our Solution

StringDynamic ProgrammingBacktracking

LeetCode ↗77% acc.

EasyRotate String✓ Our Solution

StringString Matching

LeetCode ↗64% acc.

MediumRemove Duplicates from Sorted Array II✓ Our Solution

ArrayTwo Pointers

LeetCode ↗63% acc.

MediumEdit Distance✓ Our Solution

StringDynamic Programming

LeetCode ↗59% acc.

HardLargest Rectangle in Histogram✓ Our Solution

ArrayStackMonotonic Stack

LeetCode ↗47% acc.

MediumFind First and Last Position of Element in Sorted Array✓ Our Solution

ArrayBinary Search

LeetCode ↗47% acc.

EasyBinary Search✓ Our Solution

ArrayBinary Search

LeetCode ↗60% acc.

EasySame Tree✓ Our Solution

TreeDepth-First SearchBreadth-First SearchBinary Tree

LeetCode ↗65% acc.

EasyEmployee Bonus✓ Our Solution

Database

LeetCode ↗77% acc.

MediumLongest Common Subsequence✓ Our Solution

StringDynamic Programming

LeetCode ↗58% acc.

EasyPascal's Triangle✓ Our Solution

ArrayDynamic Programming

LeetCode ↗77% acc.

MediumLongest Consecutive Sequence✓ Our Solution

ArrayHash TableUnion Find

LeetCode ↗47% acc.

MediumMaximum Product Subarray✓ Our Solution

ArrayDynamic Programming

LeetCode ↗35% acc.

EasySort Array by Increasing Frequency✓ Our Solution

ArrayHash TableSorting

LeetCode ↗80% acc.

MediumLargest Number✓ Our Solution

ArrayStringGreedySorting

LeetCode ↗41% acc.

MediumSort Characters By Frequency✓ Our Solution

Hash TableStringSortingHeap (Priority Queue)+2

LeetCode ↗74% acc.

MediumNext Permutation✓ Our Solution

ArrayTwo Pointers

LeetCode ↗43% acc.

EasyPower of Two✓ Our Solution

MathBit ManipulationRecursion

LeetCode ↗48% acc.

MediumSubsets✓ Our Solution

ArrayBacktrackingBit Manipulation

LeetCode ↗81% acc.

EasyHow Many Numbers Are Smaller Than the Current Number✓ Our Solution

ArrayHash TableSortingCounting Sort

LeetCode ↗87% acc.

EasyStudents and Examinations✓ Our Solution

Database

LeetCode ↗60% acc.

MediumPath with Maximum Probability✓ Our Solution

ArrayGraphHeap (Priority Queue)Shortest Path

LeetCode ↗65% acc.

MediumCombination Sum✓ Our Solution

ArrayBacktracking

LeetCode ↗75% acc.

EasySum of Unique Elements✓ Our Solution

ArrayHash TableCounting

LeetCode ↗79% acc.

MediumSearch a 2D Matrix II✓ Our Solution

ArrayBinary SearchDivide and ConquerMatrix

LeetCode ↗55% acc.

MediumWord Search✓ Our Solution

ArrayStringBacktrackingDepth-First Search+1

LeetCode ↗45% acc.

MediumPeak Index in a Mountain Array✓ Our Solution

ArrayBinary Search

LeetCode ↗68% acc.

EasyNumber of Employees Who Met the Target✓ Our Solution

Array

LeetCode ↗88% acc.

MediumCoin Change✓ Our Solution

ArrayDynamic ProgrammingBreadth-First Search

LeetCode ↗46% acc.

MediumPartition List✓ Our Solution

Linked ListTwo Pointers

LeetCode ↗59% acc.

EasyBig Countries✓ Our Solution

Database

LeetCode ↗68% acc.

Medium3Sum Closest✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗47% acc.

MediumCount Primes✓ Our Solution

ArrayMathEnumerationNumber Theory

LeetCode ↗35% acc.

EasyFirst Unique Character in a String✓ Our Solution

Hash TableStringQueueCounting

LeetCode ↗64% acc.

EasyIntersection of Two Arrays✓ Our Solution

ArrayHash TableTwo PointersBinary Search+1

LeetCode ↗76% acc.

100

MediumProduct of Array Except Self✓ Our Solution

ArrayPrefix Sum

LeetCode ↗68% acc.