Interview Prep/Companies/Yandex

Yandex

100 questions tracked94 with solutions

🔍

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

Showing 100 of 100 questions

MediumLongest Subarray of 1's After Deleting One Element✓ Our Solution

100

ArrayDynamic ProgrammingSliding Window

LeetCode ↗69% acc.

EasySummary Ranges✓ Our Solution

Array

LeetCode ↗53% acc.

MediumString Compression✓ Our Solution

Two PointersString

LeetCode ↗58% acc.

MediumFind K Closest Elements✓ Our Solution

ArrayTwo PointersBinary SearchSliding Window+2

LeetCode ↗49% acc.

EasyIsomorphic Strings✓ Our Solution

Hash TableString

LeetCode ↗47% acc.

MediumSubarray Sum Equals K✓ Our Solution

ArrayHash TablePrefix Sum

LeetCode ↗45% acc.

MediumPermutation in String✓ Our Solution

Hash TableTwo PointersStringSliding Window

LeetCode ↗47% acc.

MediumInsert Delete GetRandom O(1)✓ Our Solution

ArrayHash TableMathDesign+1

LeetCode ↗55% acc.

EasyValid Palindrome✓ Our Solution

Two PointersString

LeetCode ↗51% acc.

EasyMove Zeroes✓ Our Solution

ArrayTwo Pointers

LeetCode ↗63% acc.

MediumLine Reflection

ArrayHash TableMath

LeetCode ↗36% acc.

MediumLongest Substring Without Repeating Characters✓ Our Solution

Hash TableStringSliding Window

LeetCode ↗37% acc.

MediumMerge Intervals✓ Our Solution

ArraySorting

LeetCode ↗49% acc.

MediumGroup Anagrams✓ Our Solution

ArrayHash TableStringSorting

LeetCode ↗71% acc.

EasyTwo Sum✓ Our Solution

ArrayHash Table

LeetCode ↗56% acc.

MediumNumber of Islands✓ Our Solution

ArrayDepth-First SearchBreadth-First SearchUnion Find+1

LeetCode ↗62% acc.

EasyValid Parentheses✓ Our Solution

StringStack

LeetCode ↗42% acc.

MediumOne Edit Distance

Two PointersString

LeetCode ↗34% acc.

EasyValid Palindrome II✓ Our Solution

Two PointersStringGreedy

LeetCode ↗43% acc.

MediumInterval List Intersections✓ Our Solution

ArrayTwo PointersLine Sweep

LeetCode ↗73% acc.

HardTrapping Rain Water✓ Our Solution

ArrayTwo PointersDynamic ProgrammingStack+1

LeetCode ↗65% acc.

MediumFind All Anagrams in a String✓ Our Solution

Hash TableStringSliding Window

LeetCode ↗52% acc.

MediumMin Stack✓ Our Solution

StackDesign

LeetCode ↗56% acc.

MediumLongest Palindromic Substring✓ Our Solution

Two PointersStringDynamic Programming

LeetCode ↗36% acc.

EasyMerge Sorted Array✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗53% acc.

MediumDesign an ATM Machine✓ Our Solution

ArrayGreedyDesign

LeetCode ↗42% acc.

MediumGenerate Parentheses✓ Our Solution

StringDynamic ProgrammingBacktracking

LeetCode ↗77% acc.

MediumDesign Hit Counter

ArrayBinary SearchDesignQueue+1

LeetCode ↗69% acc.

MediumLRU Cache✓ Our Solution

Hash TableLinked ListDesignDoubly-Linked List

LeetCode ↗45% acc.

MediumEvaluate Reverse Polish Notation✓ Our Solution

ArrayMathStack

LeetCode ↗55% acc.

EasyIs Subsequence✓ Our Solution

Two PointersStringDynamic Programming

LeetCode ↗48% acc.

MediumValidate Binary Search Tree✓ Our Solution

TreeDepth-First SearchBinary Search TreeBinary Tree

LeetCode ↗34% acc.

EasyMerge Two Sorted Lists✓ Our Solution

Linked ListRecursion

LeetCode ↗67% acc.

MediumLongest Substring with At Most K Distinct Characters

Hash TableStringSliding Window

LeetCode ↗49% acc.

HardMinimum Window Substring✓ Our Solution

Hash TableStringSliding Window

LeetCode ↗45% acc.

MediumBinary Tree Right Side View✓ Our Solution

TreeDepth-First SearchBreadth-First SearchBinary Tree

LeetCode ↗67% acc.

EasyBest Time to Buy and Sell Stock✓ Our Solution

ArrayDynamic Programming

LeetCode ↗55% acc.

EasyDestination City✓ Our Solution

ArrayHash TableString

LeetCode ↗79% acc.

HardReconstruct Itinerary✓ Our Solution

Depth-First SearchGraphEulerian Circuit

LeetCode ↗44% acc.

MediumLowest Common Ancestor of a Binary Tree✓ Our Solution

TreeDepth-First SearchBinary Tree

LeetCode ↗67% acc.

MediumMax Consecutive Ones III✓ Our Solution

ArrayBinary SearchSliding WindowPrefix Sum

LeetCode ↗66% acc.

MediumSimplify Path✓ Our Solution

StringStack

LeetCode ↗48% acc.

HardMerge k Sorted Lists✓ Our Solution

Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort

LeetCode ↗57% acc.

MediumFind Duplicate Subtrees✓ Our Solution

Hash TableTreeDepth-First SearchBinary Tree

LeetCode ↗60% acc.

HardMedian of Two Sorted Arrays✓ Our Solution

ArrayBinary SearchDivide and Conquer

LeetCode ↗44% acc.

EasyIntersection of Two Arrays II✓ Our Solution

ArrayHash TableTwo PointersBinary Search+1

LeetCode ↗59% acc.

HardBinary Tree Maximum Path Sum✓ Our Solution

Dynamic ProgrammingTreeDepth-First SearchBinary Tree

LeetCode ↗41% acc.

MediumSearch in Rotated Sorted Array✓ Our Solution

ArrayBinary Search

LeetCode ↗43% acc.

EasySymmetric Tree✓ Our Solution

TreeDepth-First SearchBreadth-First SearchBinary Tree

LeetCode ↗59% acc.

MediumContainer With Most Water✓ Our Solution

ArrayTwo PointersGreedy

LeetCode ↗58% acc.

MediumMax Consecutive Ones II

ArrayDynamic ProgrammingSliding Window

LeetCode ↗52% acc.

EasyMax Consecutive Ones✓ Our Solution

Array

LeetCode ↗62% acc.

MediumProduct of Array Except Self✓ Our Solution

ArrayPrefix Sum

LeetCode ↗68% acc.

MediumAdd Two Numbers✓ Our Solution

Linked ListMathRecursion

LeetCode ↗46% acc.

EasySingle Number✓ Our Solution

ArrayBit Manipulation

LeetCode ↗76% acc.

HardCandy✓ Our Solution

ArrayGreedy

LeetCode ↗47% acc.

EasyRemove Element✓ Our Solution

ArrayTwo Pointers

LeetCode ↗60% acc.

MediumLongest Increasing Subsequence✓ Our Solution

ArrayBinary SearchDynamic Programming

LeetCode ↗58% acc.

MediumLongest Repeating Character Replacement✓ Our Solution

Hash TableStringSliding Window

LeetCode ↗57% acc.

MediumLongest Substring with At Least K Repeating Characters✓ Our Solution

Hash TableStringDivide and ConquerSliding Window

LeetCode ↗45% acc.

EasyIntersection of Two Arrays✓ Our Solution

ArrayHash TableTwo PointersBinary Search+1

LeetCode ↗76% acc.

MediumPerfect Squares✓ Our Solution

MathDynamic ProgrammingBreadth-First Search

LeetCode ↗56% acc.

MediumFind Minimum in Rotated Sorted Array✓ Our Solution

ArrayBinary Search

LeetCode ↗53% acc.

EasyValid Anagram✓ Our Solution

Hash TableStringSorting

LeetCode ↗67% acc.

MediumLowest Common Ancestor of a Binary Search Tree✓ Our Solution

TreeDepth-First SearchBinary Search TreeBinary Tree

LeetCode ↗68% acc.

MediumContinuous Subarray Sum✓ Our Solution

ArrayHash TableMathPrefix Sum

LeetCode ↗31% acc.

MediumMeeting Rooms II

ArrayTwo PointersGreedySorting+2

LeetCode ↗52% acc.

MediumBinary Tree Zigzag Level Order Traversal✓ Our Solution

TreeBreadth-First SearchBinary Tree

LeetCode ↗62% acc.

MediumKth Largest Element in an Array✓ Our Solution

ArrayDivide and ConquerSortingHeap (Priority Queue)+1

LeetCode ↗68% acc.

EasyBalanced Binary Tree✓ Our Solution

TreeDepth-First SearchBinary Tree

LeetCode ↗55% acc.

EasyPalindrome Number✓ Our Solution

Math

LeetCode ↗59% acc.

MediumBest Time to Buy and Sell Stock II✓ Our Solution

ArrayDynamic ProgrammingGreedy

LeetCode ↗70% acc.

MediumReverse Integer✓ Our Solution

Math

LeetCode ↗30% acc.

MediumTwo Sum II - Input Array Is Sorted✓ Our Solution

ArrayTwo PointersBinary Search

LeetCode ↗63% acc.

EasyFirst Unique Character in a String✓ Our Solution

Hash TableStringQueueCounting

LeetCode ↗64% acc.

EasyCan Place Flowers✓ Our Solution

ArrayGreedy

LeetCode ↗29% acc.

EasyReverse Words in a String III✓ Our Solution

Two PointersString

LeetCode ↗84% acc.

MediumTop K Frequent Words✓ Our Solution

ArrayHash TableStringTrie+4

LeetCode ↗59% acc.

MediumFlatten Nested List Iterator✓ Our Solution

StackTreeDepth-First SearchDesign+2

LeetCode ↗65% acc.

MediumSort the Matrix Diagonally✓ Our Solution

ArraySortingMatrix

LeetCode ↗83% acc.

EasyContains Duplicate✓ Our Solution

ArrayHash TableSorting

LeetCode ↗63% acc.

EasyReverse Linked List✓ Our Solution

Linked ListRecursion

LeetCode ↗79% acc.

MediumTop K Frequent Elements✓ Our Solution

ArrayHash TableDivide and ConquerSorting+4

LeetCode ↗65% acc.

MediumRemove Duplicates from Sorted Array II✓ Our Solution

ArrayTwo Pointers

LeetCode ↗63% acc.

EasyFind the Difference of Two Arrays✓ Our Solution

ArrayHash Table

LeetCode ↗81% acc.

MediumSearch a 2D Matrix✓ Our Solution

ArrayBinary SearchMatrix

LeetCode ↗52% acc.

Medium3Sum✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗37% acc.

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

Two PointersStringString Matching

LeetCode ↗45% acc.

EasyRobot Return to Origin✓ Our Solution

StringSimulation

LeetCode ↗76% acc.

MediumRotate Image✓ Our Solution

ArrayMathMatrix

LeetCode ↗78% acc.

EasyClimbing Stairs✓ Our Solution

MathDynamic ProgrammingMemoization

LeetCode ↗54% acc.

EasyPath Crossing✓ Our Solution

Hash TableString

LeetCode ↗63% acc.

MediumLongest Consecutive Sequence✓ Our Solution

ArrayHash TableUnion Find

LeetCode ↗47% acc.

EasyMaximum Depth of Binary Tree✓ Our Solution

TreeDepth-First SearchBreadth-First SearchBinary Tree

LeetCode ↗77% acc.

EasyMajority Element✓ Our Solution

ArrayHash TableDivide and ConquerSorting+1

LeetCode ↗66% acc.

HardContains Duplicate III✓ Our Solution

ArraySliding WindowSortingBucket Sort+1

LeetCode ↗24% acc.

EasyPalindrome Linked List✓ Our Solution

Linked ListTwo PointersStackRecursion

LeetCode ↗56% acc.

MediumNon-overlapping Intervals✓ Our Solution

ArrayDynamic ProgrammingGreedySorting

LeetCode ↗56% acc.

HardPalindrome Pairs✓ Our Solution

ArrayHash TableStringTrie

LeetCode ↗36% acc.

100

MediumMinimum Size Subarray Sum✓ Our Solution

ArrayBinary SearchSliding WindowPrefix Sum

LeetCode ↗49% acc.