Package g1801_1900.s1849_splitting_a_string_into_descending_consecutive_values

Class Solution

java.lang.Object
g1801_1900.s1849_splitting_a_string_into_descending_consecutive_values.Solution
public class Solution extends Object
1849 - Splitting a String Into Descending Consecutive Values.

Medium

You are given a string s that consists of only digits.

Check if we can split s into two or more non-empty substrings such that the numerical values of the substrings are in descending order and the difference between numerical values of every two adjacent substrings is equal to 1.

  • For example, the string s = "0090089" can be split into ["0090", "089"] with numerical values [90,89]. The values are in descending order and adjacent values differ by 1, so this way is valid.
  • Another example, the string s = "001" can be split into ["0", "01"], ["00", "1"], or ["0", "0", "1"]. However all the ways are invalid because they have numerical values [0,1], [0,1], and [0,0,1] respectively, all of which are not in descending order.

Return true if it is possible to split s as described above_, or_ false otherwise.

A substring is a contiguous sequence of characters in a string.

Example 1:

Input: s = “1234”

Output: false

Explanation: There is no valid way to split s.

Example 2:

Input: s = “050043”

Output: true

Explanation: s can be split into [“05”, “004”, “3”] with numerical values [5,4,3]. The values are in descending order with adjacent values differing by 1.

Example 3:

Input: s = “9080701”

Output: false

Explanation: There is no valid way to split s.

Constraints:

  • 1 <= s.length <= 20
  • s only consists of digits.

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • splitString

      public boolean splitString(String s)