How do I practice coding and algorithm questions?

Use PracHub's coding console to write, test, and debug your solutions in Python or JavaScript. View hints, test against sample inputs, and compare with official solutions.

What difficulty level is this coding question?

This is a medium difficulty Coding & Algorithms question, commonly asked during Onsite rounds at Pinterest.

What role is this question designed for?

This question is commonly asked for Machine Learning Engineer candidates at Pinterest during technical interviews.

Solve Expression and Tree-List Problems | Pinterest Coding Question

Quick Overview

This question evaluates competency in string expression generation under a custom left-to-right evaluation rule and in-place binary search tree manipulation to form a sorted doubly linked list, covering expression evaluation, digit concatenation constraints, and pointer-based data structure transformations.

medium
Pinterest
Coding & Algorithms
Machine Learning Engineer

Quick Overview

medium
Pinterest
Coding & Algorithms
Machine Learning Engineer

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