g1901_2000.s1962_remove_stones_to_minimize_the_total

Class Solution

java.lang.Object

g1901_2000.s1962_remove_stones_to_minimize_the_total.Solution

public class Solution
extends Object

1962 - Remove Stones to Minimize the Total.

Medium

You are given a 0-indexed integer array piles, where piles[i] represents the number of stones in the ith pile, and an integer k. You should apply the following operation exactly k times:

• Choose any piles[i] and remove floor(piles[i] / 2) stones from it.

Notice that you can apply the operation on the same pile more than once.

Return the minimum possible total number of stones remaining after applying the k operations.

floor(x) is the greatest integer that is smaller than or equal to x (i.e., rounds x down).

Example 1:

Input: piles = [5,4,9], k = 2

Output: 12

Explanation: Steps of a possible scenario are:

• Apply the operation on pile 2. The resulting piles are [5,4,5].

• Apply the operation on pile 0. The resulting piles are [3,4,5].

The total number of stones in [3,4,5] is 12.

Example 2:

Input: piles = [4,3,6,7], k = 3

Output: 12

Explanation: Steps of a possible scenario are:

• Apply the operation on pile 2. The resulting piles are [4,3,3,7].

• Apply the operation on pile 3. The resulting piles are [4,3,3,4].

• Apply the operation on pile 0. The resulting piles are [2,3,3,4].

The total number of stones in [2,3,3,4] is 12.

Constraints:

• 1 <= piles.length <= 105
• 1 <= piles[i] <= 104
• 1 <= k <= 105

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
int	minStoneSum(int[] piles, int k)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

minStoneSum

public int minStoneSum(int[] piles,
                       int k)