Insert Plus or Times Between Ordered Numbers to Reach a Target, Evaluated Left to Right

Company: Pinterest

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: hard

Interview Round: Onsite

Overview: Decide whether placing a plus or times operator between every pair of adjacent numbers, kept in their original order, can produce a target value when the expression is evaluated strictly left to right. Tests careful handling of evaluation order, operator choices, and the size of the search space.

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