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Yandex Interview Questions (32)

Practice real interview problems from Yandex

All32 Easy12 Medium17 Hard3

Status	Title	Solution	Practice	Difficulty	Companies	Topics
	3. Longest Substring Without Repeating Characters	Solution	Solve	Medium	Adobe+20	Hash Table Sliding Window+1
	4. Median of Two Sorted Arrays	Solution	Solve	Hard	Accolite+38	Array Binary Search+1
	13. Roman to Integer	Solution	Solve	Easy	Accenture+18	Hash Table Math+1
	20. Valid Parentheses	Solution	Solve	Easy	Adobe+25	Stack String
	23. Merge k Sorted Lists	Solution	Solve	Hard	Adobe+17	Divide and Conquer Heap (Priority Queue)+2
	33. Search in Rotated Sorted Array	Solution	Solve	Medium	Accenture+91	Array Binary Search
	56. Merge Intervals	Solution	Solve	Medium	Adobe+24	Array Sorting
	125. Valid Palindrome	Solution	Solve	Easy	Adobe+8	String Two Pointers
	150. Evaluate Reverse Polish Notation	Solution	Solve	Medium	Amazon+6	Array Math+1
	200. Number of Islands	Solution	Solve	Medium	Adobe+40	Array Breadth-First Search+3
	206. Reverse Linked List	Solution	Solve	Easy	Amazon+8	Linked List Recursion
	228. Summary Ranges	Solution	Solve	Easy	Adobe+7	Array
	281. Zigzag Iterator	Solution	Solve	Medium	Amazon+3	Array Design+2
	283. Move Zeroes	Solution	Solve	Easy	Adobe+11	Array Two Pointers
	300. Longest Increasing Subsequence	Solution	Solve	Medium	Accenture+78	Array Binary Search+1
	341. Flatten Nested List Iterator	Solution	Solve	Medium	Airbnb+10	Depth-First Search Design+4
	356. Line Reflection	Solution	Solve	Medium	Yandex	Array Hash Table+1
	392. Is Subsequence	Solution	Solve	Easy	Accolite+15	Dynamic Programming String+1
	404. Sum of Left Leaves	Solution	Solve	Easy	Adobe+6	Binary Tree Breadth-First Search+2
	443. String Compression	Solution	Solve	Medium	Amazon+8	String Two Pointers
	470. Implement Rand10() Using Rand7()	Solution	Solve	Medium	Amazon+2	Math Probability and Statistics+2
	557. Reverse Words in a String III	Solution	Solve	Easy	Accolite+27	String Two Pointers
	567. Permutation in String	Solution	Solve	Medium	Amazon+7	Hash Table Sliding Window+2
	657. Robot Return to Origin	Solution	Solve	Easy	Amazon+3	Simulation String
	716. Max Stack	Solution	Solve	Hard	Amazon+6	Design Doubly-Linked List+3
	849. Maximize Distance to Closest Person	Solution	Solve	Medium	Amazon+3	Array
	933. Number of Recent Calls	Solution	Solve	Easy	Bloomberg+1	Data Stream Design+1
	986. Interval List Intersections	Solution	Solve	Medium	Amazon+7	Array Two Pointers
	1450. Number of Students Doing Homework at a Given Time	Solution	Solve	Easy	Yandex	Array
	1493. Longest Subarray of 1's After Deleting One Element	Solution	Solve	Medium	Yandex	Array Dynamic Programming+1
	2241. Design an ATM Machine	Solution	Solve	Medium	Google+1	Array Design+1
	2657. Find the Prefix Common Array of Two Arrays	Solution	Solve	Medium	Yandex	Array Bit Manipulation+1

Longest Substring Without Repeating Characters

Medium✓ Solution📹 Video

Adobe+20

Hash Table Sliding Window String

Median of Two Sorted Arrays

Hard✓ Solution📹 Video

Accolite+38

Array Binary Search Divide and Conquer

Roman to Integer

Easy✓ Solution📹 Video

Accenture+18

Hash Table Math String

Valid Parentheses

Easy✓ Solution📹 Video

Adobe+25

Merge k Sorted Lists

Hard✓ Solution📹 Video

Adobe+17

Divide and Conquer Heap (Priority Queue)Linked List+1

Search in Rotated Sorted Array

Medium✓ Solution📹 Video

Accenture+91

Array Binary Search

Merge Intervals

Medium✓ Solution📹 Video

Adobe+24

Valid Palindrome

Easy✓ Solution📹 Video

Adobe+8

String Two Pointers

Evaluate Reverse Polish Notation

Medium✓ Solution📹 Video

Amazon+6

Array Math Stack

Number of Islands

Medium✓ Solution📹 Video

Adobe+40

Array Breadth-First Search Depth-First Search+2

Reverse Linked List

Easy✓ Solution📹 Video

Amazon+8

Linked List Recursion

Summary Ranges

Easy✓ Solution📹 Video

Adobe+7

Zigzag Iterator

Medium✓ Solution📹 Video

Amazon+3

Array Design Iterator+1

Move Zeroes

Easy✓ Solution📹 Video

Adobe+11

Array Two Pointers

Longest Increasing Subsequence

Medium✓ Solution📹 Video

Accenture+78

Array Binary Search Dynamic Programming

Flatten Nested List Iterator

Medium✓ Solution📹 Video

Airbnb+10

Depth-First Search Design Iterator+3

Line Reflection

Medium📹 Video

Yandex

Array Hash Table Math

Is Subsequence

Easy✓ Solution📹 Video

Accolite+15

Dynamic Programming String Two Pointers

Sum of Left Leaves

Easy✓ Solution📹 Video

Adobe+6

Binary Tree Breadth-First Search Depth-First Search+1

String Compression

Medium✓ Solution📹 Video

Amazon+8

String Two Pointers

Implement Rand10() Using Rand7()

Medium✓ Solution📹 Video

Amazon+2

Math Probability and Statistics Randomized+1

Reverse Words in a String III

Easy✓ Solution📹 Video

Accolite+27

String Two Pointers

Permutation in String

Medium✓ Solution📹 Video

Amazon+7

Hash Table Sliding Window String+1

Robot Return to Origin

Easy✓ Solution📹 Video

Amazon+3

Simulation String

Max Stack

Hard✓ Solution📹 Video

Amazon+6

Design Doubly-Linked List Linked List+2

Maximize Distance to Closest Person

Medium✓ Solution📹 Video

Amazon+3

Number of Recent Calls

Easy✓ Solution📹 Video

Bloomberg+1

Data Stream Design Queue

Interval List Intersections

Medium✓ Solution📹 Video

Amazon+7

Array Two Pointers

Number of Students Doing Homework at a Given Time

Easy📹 Video

Yandex

Longest Subarray of 1's After Deleting One Element

Medium✓ Solution📹 Video

Yandex

Array Dynamic Programming Sliding Window

Design an ATM Machine

Medium📹 Video

Google+1

Array Design Greedy

Find the Prefix Common Array of Two Arrays

Medium📹 Video

Yandex

Array Bit Manipulation Hash Table