The Market Streak

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Seniority

L4

Problem

You have a stock's daily closing prices in `prices`, oldest first. For each day, report how many consecutive days up to and including that day had a price no greater than that day's price; the run ends the moment an earlier day was more expensive. Return one count per day in the same order, and every day counts at least itself.

Summary

Some stocks run longer than you think.

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