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Grokking the Coding Interview Patterns in Python

Solution: Diet Plan Performance

Explore how to use the sliding window technique to solve the diet plan performance problem. Understand how to track the sum of calories over sequences of days, update the score based on thresholds, and optimize calculations for improved efficiency. This lesson helps you implement and analyze a linear time and constant space solution.

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Statement

A dieter consumes calories[i] calories on the i-th day.

Given an integer k, the dieter reviews their calorie intake over every sequence of k consecutive days (from calories[i] to calories[i+k-1] for all 0 <= i <= n-k). For each sequence, they calculate T, the total calories consumed over those k days:

  • If T is less than lower, the dieter ...