Class Solution


  • public class Solution
    extends Object
    2405 - Optimal Partition of String.

    Medium

    Given a string s, partition the string into one or more substrings such that the characters in each substring are unique. That is, no letter appears in a single substring more than once.

    Return the minimum number of substrings in such a partition.

    Note that each character should belong to exactly one substring in a partition.

    Example 1:

    Input: s = “abacaba”

    Output: 4

    Explanation:

    Two possible partitions are (“a”,“ba”,“cab”,“a”) and (“ab”,“a”,“ca”,“ba”).

    It can be shown that 4 is the minimum number of substrings needed.

    Example 2:

    Input: s = “ssssss”

    Output: 6

    Explanation:

    The only valid partition is (“s”,“s”,“s”,“s”,“s”,“s”).

    Constraints:

    • 1 <= s.length <= 105
    • s consists of only English lowercase letters.
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • partitionString

        public int partitionString​(String s)