原创 LeetCode-647. Palindromic Substrings
Description Given a string, your task is to count how many palindromic substrings in this string. The substrings w
2020-02-21 16:31:12
原创 LeetCode-22. Generate Parentheses
Description Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.
2020-02-21 16:31:12
原创 LeetCode-279. Perfect Squares
Description Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16,
2020-02-21 16:31:12
原创 LeetCode-17. Letter Combinations of a Phone Number
Description Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the n
2020-02-21 16:31:12