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PayPal Interview Questions (106)

Practice real interview problems from PayPal

All106 Easy18 Medium69 Hard19

Status	Title	Solution	Practice	Difficulty	Companies	Topics
	1. Two Sum	Solution	Solve	Easy	Accenture+128	Array Hash Table
	20. Valid Parentheses	Solution	Solve	Easy	Accenture+118	Stack String
	70. Climbing Stairs	Solution	Solve	Easy	Accenture+37	Dynamic Programming Math+1
	88. Merge Sorted Array	Solution	Solve	Easy	Accenture+41	Array Sorting+1
	121. Best Time to Buy and Sell Stock	Solution	Solve	Easy	Accenture+103	Array Dynamic Programming
	202. Happy Number	Solution	Solve	Easy	Accenture+30	Hash Table Math+1
	242. Valid Anagram	Solution	Solve	Easy	Accenture+40	Hash Table Sorting+1
	283. Move Zeroes	Solution	Solve	Easy	Accenture+48	Array Two Pointers
	412. Fizz Buzz	Solution	Solve	Easy	Agoda+18	Math Simulation+1
	697. Degree of an Array	Solution	Solve	Easy	Amazon+12	Array Hash Table
	1046. Last Stone Weight	Solution	Solve	Easy	Amazon+13	Array Heap (Priority Queue)
	1160. Find Words That Can Be Formed by Characters	Solution	Solve	Easy	Amazon+5	Array Counting+2
	1200. Minimum Absolute Difference	Solution	Solve	Easy	Agoda+14	Array Sorting
	1251. Average Selling Price	Solution	Solve	Easy	Amazon+7	Database
	1854. Maximum Population Year	Solution	Solve	Easy	Amazon+8	Array Counting+1
	2062. Count Vowel Substrings of a String	Solution	Solve	Easy	Amazon+11	Hash Table String
	2586. Count the Number of Vowel Strings in Range	Solution	Solve	Easy	PayPal	Array Counting+1
	2697. Lexicographically Smallest Palindrome	Solution	Solve	Easy	Amazon+4	Greedy String+1

Two Sum

Easy✓ Solution📹 Video

Accenture+128

Array Hash Table

Valid Parentheses

Easy✓ Solution📹 Video

Accenture+118

Climbing Stairs

Easy✓ Solution

Accenture+37

Dynamic Programming Math Memoization

Merge Sorted Array

Easy✓ Solution📹 Video

Accenture+41

Array Sorting Two Pointers

Best Time to Buy and Sell Stock

Easy✓ Solution📹 Video

Accenture+103

Array Dynamic Programming

Happy Number

Easy✓ Solution

Accenture+30

Hash Table Math Two Pointers

Valid Anagram

Easy✓ Solution📹 Video

Accenture+40

Hash Table Sorting String

Move Zeroes

Easy✓ Solution📹 Video

Accenture+48

Array Two Pointers

Fizz Buzz

Easy✓ Solution📹 Video

Agoda+18

Math Simulation String

Degree of an Array

Easy✓ Solution

Amazon+12

Array Hash Table

Last Stone Weight

Easy✓ Solution

Amazon+13

Array Heap (Priority Queue)

Find Words That Can Be Formed by Characters

Easy✓ Solution

Amazon+5

Array Counting Hash Table+1

Minimum Absolute Difference

Easy✓ Solution

Agoda+14

Average Selling Price

Easy📹 Video

Amazon+7

Maximum Population Year

Easy

Amazon+8

Array Counting Prefix Sum

Count Vowel Substrings of a String

Easy

Amazon+11

Hash Table String

Count the Number of Vowel Strings in Range

Easy📹 Video

PayPal

Array Counting String

Lexicographically Smallest Palindrome

Easy📹 Video

Amazon+4

Greedy String Two Pointers