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Distinct Subsequences || Leetcode Daily Challenge || Intuition + Code + Explanation || 3 Approaches
Автор: Code with Alisha
Загружено: 2021-09-19
Просмотров: 8589
Описание:
Given two strings s and t, return the number of distinct subsequences of s which equals t.
A string's subsequence is a new string formed from the original string by deleting some (can be none) of the characters without disturbing the remaining characters' relative positions. (i.e., "ACE" is a subsequence of "ABCDE" while "AEC" is not).
It is guaranteed the answer fits on a 32-bit signed integer.
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