paypal interview questions
Online test → Technical → HR·52% entry level
DSA
Showing 30 of 178 reported in this area
Find the first and last positions of an element in a sorted array
Detect a cycle in a linked list
Detect a cycle in a directed graph.
Clone a graph (deep copy of a graph)
Reverse a linked list in groups of k
Group a list of strings into anagrams.
Beautiful Numbers problem
Find itinerary from a given list of tickets
Count all palindromic substrings in a string
Detect a loop in a linked list and remove it
Find the length of the loop in a linked list
Find the first node of a loop in a linked list
Merge K sorted linked lists into one sorted list
Reverse a linked list in groups of given size K.
Convert an infix expression to postfix expression
Generate all possible subsets of a given set/array
Check whether a singly linked list is a palindrome.
Find the k-th smallest element in an unsorted array.
Implement vertical order traversal of a binary tree.
Find the starting node of the cycle in a linked list.
A coding problem similar to the Shared Interest problem
Find the k-th largest element in an array using a heap.
Solve the problem 'Abandoned City' using binary search.
Find the largest subarray with equal number of 0s and 1s
Find the Longest Increasing Subsequence (LIS) in an array
Find the minimum number of swaps required to sort an array
Write a program to implement a stack using classes in C++.
Design a Sudoku game and explain the algorithm to solve it.
Find K closest elements to a given value in a sorted array.
Find the longest palindromic subsequence in a given string.
CS fundamentals
Showing 18 of 116 reported in this area
Write SQL queries to analyze data.
How is HashMap implemented in Java?
Design and implement your own HashMap
Find the intercept of a regression line.
Explain the diamond problem in inheritance.
Explain the approach for solving a maze problem
Explain the working of ConcurrentHashMap in Java
SQL subqueries and query optimization techniques
Explain hypothesis testing and its key components.
Write example programs demonstrating polymorphism.
Answer questions related to the normal distribution.
Explain JSP fundamentals and how JSP works with HTTP.
What is a virtual destructor and why is it important?
Explain the internal implementation of HashMap in Java
How are virtual functions implemented by the compiler?
Explain correlation and covariance and how they differ.
Explain different types of errors in statistical modeling.
How does Spring Boot solve problems that Spring could not?
System design
Showing 3 of 22 reported in this area
Explain the principle of Consistent Hashing
What new features would you add to Instagram?
Design a data structure to implement the 15-puzzle game
Aptitude
Showing 3 of 9 reported in this area
Answer data interpretation questions based on given charts or numerical data.
Solve Einstein-style logic puzzles involving multiple constraints to deduce correct assignments.
Solve aptitude questions based on work and time.
Behavioural
Showing 3 of 6 reported in this area
Propose and justify new features that could be added to Instagram.
What is the biggest challenge you have faced while using your preferred programming language?
Solve real-life scenario problems and explain solutions using technical concepts such as DBMS or system interrupts
Puzzles
Showing 3 of 4 reported in this area
Simulate rolling a dice and generate a random number between 1 and 6 without using built-in random functions
Solve basic logical reasoning questions that test clarity of understanding.
You are in a room with three switches, each connected to a bulb in another room that you cannot see. All switches are initially off. How do you determine which switch controls which bulb?
Showing 60 of 275 questions. Ranked by how often the same question came back across reports.
Practise a paypal-style interview
A spoken interview built from these questions, scored when you finish; the report is yours.
Start practisingCommon questions
What questions does paypal ask?
Candidate interview reports most often cover DSA (53%) and CS fundamentals (35%).
How many rounds does paypal interview have?
Candidate interview reports show an average of 3.2 rounds per experience, with a typical sequence of Online test → Technical → HR. Individual interview paths can vary.
Is the paypal interview hard?
Among questions with a reported difficulty, the mix is easy 38%, medium 55%, hard 7%.