1585. Check If String Is Transformable With Substring Sort Operations

https://leetcode.com/problems/check-if-string-is-transformable-with-substring-sort-operations

Description

Given two strings s and t, you want to transform string s into string t using the following operation any number of times:

• Choose a non-empty substring in s and sort it in-place so the characters are in ascending order.

For example, applying the operation on the underlined substring in "14234" results in "12344".

Return true if it is possible to transform string s into string t. Otherwise, return false.

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

Example 1:

**Input:** s = "84532", t = "34852"
**Output:** true
**Explanation:** You can transform s into t using the following sort operations:
"84532" (from index 2 to 3) -> "84352"
"84352" (from index 0 to 2) -> "34852"

Example 2:

**Input:** s = "34521", t = "23415"
**Output:** true
**Explanation:** You can transform s into t using the following sort operations:
"34521" -> "23451"
"23451" -> "23415"

Example 3:

**Input:** s = "12345", t = "12435"
**Output:** false

Example 4:

**Input:** s = "1", t = "2"
**Output:** false

Constraints:

• s.length == t.length

• 1 <= s.length <= 105

• s and t only contain digits from '0' to '9'.

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