Given two strings
t, return the number of distinct
s which equals
The test cases are generated so that the answer fits on a 32-bit signed integer.
Input: s = "rabbbit", t = "rabbit" Output: 3 Explanation: As shown below, there are 3 ways you can generate "rabbit" from s.
Input: s = "babgbag", t = "bag" Output: 5 Explanation: As shown below, there are 5 ways you can generate "bag" from s.
1 <= s.length, t.length <= 1000
tconsist of English letters.