Package g2501_2600.s2516_take_k_of_each_character_from_left_and_right

Class Solution

java.lang.Object
g2501_2600.s2516_take_k_of_each_character_from_left_and_right.Solution
public class Solution extends Object
2516 - Take K of Each Character From Left and Right.

Medium

You are given a string s consisting of the characters 'a', 'b', and 'c' and a non-negative integer k. Each minute, you may take either the leftmost character of s, or the rightmost character of s.

Return the minimum number of minutes needed for you to take at least k of each character, or return -1 if it is not possible to take k of each character.

Example 1:

Input: s = “aabaaaacaabc”, k = 2

Output: 8

Explanation:

Take three characters from the left of s. You now have two ‘a’ characters, and one ‘b’ character.

Take five characters from the right of s. You now have four ‘a’ characters, two ‘b’ characters, and two ‘c’ characters.

A total of 3 + 5 = 8 minutes is needed.

It can be proven that 8 is the minimum number of minutes needed.

Example 2:

Input: s = “a”, k = 1

Output: -1

Explanation: It is not possible to take one ‘b’ or ‘c’ so return -1.

Constraints:

  • 1 <= s.length <= 105
  • s consists of only the letters 'a', 'b', and 'c'.
  • 0 <= k <= s.length

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • takeCharacters

      public int takeCharacters(String s, int k)