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K Items With the Maximum Sum

There is a bag that consists of items, each item has a number 1, 0, or -1 written on it.

There is a bag that consists of items, each item has a number 1, 0, or -1 written on it.

You are given four non-negative integers numOnes, numZeros, numNegOnes, and k.

The bag initially contains:

We want to pick exactly k items among the available items. Return the maximum possible sum of numbers written on the items.

Example 1

Input: numOnes = 3, numZeros = 2, numNegOnes = 0, k = 2

Output: 2

Explanation: We have a bag of items with numbers written on them {1, 1, 1, 0, 0}. We take 2 items with 1 written on them and get a sum in a total of 2. It can be proven that 2 is the maximum possible sum.

Example 2

Input: numOnes = 3, numZeros = 2, numNegOnes = 0, k = 4

Output: 3

Explanation: We have a bag of items with numbers written on them {1, 1, 1, 0, 0}. We take 3 items with 1 written on them, and 1 item with 0 written on it, and get a sum in a total of 3. It can be proven that 3 is the maximum possible sum.

Constraints

  • 0 <= numOnes, numZeros, numNegOnes <= 50
  • 0 <= k <= numOnes + numZeros + numNegOnes

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