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This is a Medium difficulty Coding & Algorithms question, commonly asked during Technical Screen rounds at PayPal.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at PayPal during technical interviews.

Generate Bigrams Using Python List Comprehension and Zip

Last updated: Mar 29, 2026

Quick Overview

This question evaluates proficiency in Python programming, particularly list comprehension, string tokenization, and sequence manipulation for generating consecutive word bigrams.

PayPal

Aug 4, 2025, 10:55 AM

Data Scientist

Technical Screen

Coding & Algorithms

Scenario

Live Python exercise: generate all bigrams from an input string and iteratively optimize the solution.

Question

Write a Python function that takes a sentence and returns a list of all consecutive word bigrams. Refactor the solution with list comprehension for conciseness. Can you further compress it into a single line? (Hint: consider using zip.)

Hints

Think of zip(s.split()[:-1], s.split()[1:]) and join/format as needed.

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