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Grokking the Coding Interview Patterns in JavaScript

Solution: Diet Plan Performance

Understand how to apply the sliding window technique to efficiently calculate calorie intake over consecutive days. Learn to track performance points by updating sums dynamically, optimizing time and space complexity in solving diet plan challenges.

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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 ...