Package g1301_1400.s1358_number_of_substrings_containing_all_three_characters

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    1358 - Number of Substrings Containing All Three Characters.

    Medium

    Given a string s consisting only of characters a, b and c.

    Return the number of substrings containing at least one occurrence of all these characters a, b and c.

    Example 1:

    Input: s = "abcabc"

    Output: 10

    Explanation: The substrings containing at least one occurrence of the characters a, b and c are "abc", "abca", "abcab", "abcabc", "bca", "bcab", "bcabc", "cab", "cabc" and "abc" ( again ).

    Example 2:

    Input: s = "aaacb"

    Output: 3

    Explanation: The substrings containing at least one occurrence of the characters a, b and c are "aaacb", "aacb" and "acb".

    Example 3:

    Input: s = "abc"

    Output: 1

    Constraints:

    • 3 <= s.length <= 5 x 10^4

    • s only consists of a, b or _c _characters.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Integer numberOfSubstrings(String s)

      • Methods inherited from class java.lang.Object

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