Code Question 1

Amazon Prime Video has recently released an exclusive series on its platform. They collected the number of viewers from n different regions across the world and stored the data in the array viewers_count.

The success value of the release is defined as the sum of viewership in the top k regions, those with the highest viewers.
For example, if viewers_count = [3, 2, 1, 4, 5] and k = 3, then the success value of the release is 3 + 4 + 5 = 12 as [3, 4, 5] are the top 3 values.

Given a number of k values, calculate the success value for each query.

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Example

Input:
The viewership in 5 regions is viewers_count = [2, 5, 6, 3, 5], and we want to find the success value for 3 queries that are queries = [2, 3, 5].

Output:
[11, 16, 21]

Explanation:

• For the first query, k = 2, the viewership of the top 2 regions is [6, 5]. The success value is 6 + 5 = 11.
• For the second query, k = 3, the viewership of the top 3 regions is [6, 5, 5] and 6 + 5 + 5 = 16.
• For the third query, k = 5, all 5 regions are used for the success value, and 6 + 5 + 5 + 3 + 2 = 21.

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Function Description

Complete the function getViewValue in the editor below.

Parameters:

• int viewers_count[n]: An array representing the number of viewers in each region.
• int queries[q]: An array of queries where each element represents k.

Returns:

• int[]: An array where each element is the success value corresponding to a query in queries.

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Code Question 2

Problem: Data Dependence in Time-Series Data

Description:
Data analysts at Amazon are analyzing time-series data. It was concluded that the data of the nth item was dependent on the data of some xth day if there exists a positive integer k such that floor(n / k) = x, where floor(z) represents the largest integer less than or equal to z.

Given n, find the sum of all the days' numbers (x) on which the data of the xth day (0 ≤ x ≤ n) will be dependent.

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Example

Suppose n = 5.

x	k	floor(n / k)
0	6	floor(5 / 6) = 0
1	5	floor(5 / 5) = 1
2	2	floor(5 / 2) = 2
3	Does not exist	-
4	Does not exist	-
5	1	floor(5 / 1) = 5

The answer is the sum of all valid x values: 0 + 1 + 2 + 5 = 8.

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Function Description

Complete the function getDataDependenceSum in the editor below.

Parameters:

• long int n: The day to analyze the data dependency for.

Returns:

• long int: The sum of days on which the data is dependent.

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Constraints

• The value of n is a positive integer.
• Efficient computation is required for larger values of n.

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