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Problem · Hash Table

Get Maximum Sum (a.k.a. Find Max Health Sum :P

● EasyAmazonNEW GRADOA
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Note 📝 - might be a sister problem of 🦥 Get Max Sum

Amazon is building a new data center with n servers of different types. The health and type of each server are represented in the arrays health and serverType. The developers need to build a server facility with a maximum of k distinct types of servers and the sum of their health should be maximized.

Given arrays health and serverType, find the maximum sum of the health for up to k types of servers.

Function Description

Complete the function getMaximumSum in the editor.

getMaximumSum has the following parameters:

  1. int health[n]: the health of each server
  2. int serverType[n]: the type of each server
  3. int k: the maximum number of distinct types

Returns

long int: the maximum sum of health of the selected servers

Thanks a lot to Spike — our trusted authority! 🥰

Examples
01 · Example 1
health = [4, 5, 5, 6]
serverType = [1, 2, 1, 2]
k = 1
return = 11
Example 1 illustration
Since k = 1, all selected servers must be the same type. The better option is to select type 2 servers. The maximum sum of health for type 2 servers is 5 + 6 = 11. Return 11.
02 · Example 2
health = [1, 2, 3, 10, 10]
serverType = [3, 3, 1, 2, 5]
k = 2
return = 20
With k = 2, the best option is to select servers of types 1 and 5. The maximum sum of health for these types is 2 + 3 + 10 = 15 for type 1 and 10 for type 5, which adds up to 20. Return 20.
Constraints
  • 1 ≤ k ≤ n ≤ 10^5
  • 1 ≤ health[i] ≤ 10^9
  • 1 ≤ serverType[i] ≤ n
More Amazon problems
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public long getMaximumSum(int[] health, int[] serverType, int k) {
  // write your code here
}
health[4, 5, 5, 6]
serverType[1, 2, 1, 2]
k1
expected11
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