题目描述：
LeetCode 793. Preimage Size of Factorial Zeroes Function
Let f(x) be the number of zeroes at the end of x!. (Recall that x! = 1 * 2 * 3 * ... * x, and by convention, 0! = 1.)
For example, f(3) = 0 because ...
归档 2018
[LeetCode]Preimage Size of Factorial Zeroes Function
[LeetCode]Number of Subarrays with Bounded Maximum
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题目描述：
LeetCode 795. Number of Subarrays with Bounded Maximum
We are given an array A of positive integers, and two positive integers L and R (L <= R).
Return the number of (contiguous, non-empty) subarrays such that the value of ...
[LeetCode]Number of Matching Subsequences
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LeetCode.
题目描述：
LeetCode 792. Number of Matching Subsequences
Given string S and a dictionary of words words, find the number of words[i] that is a subsequence of S.
Example : Input: S = "abcde" words = ["a", "bb", "acd", "ace"] Output: 3 Explanation: There ...
[LeetCode]Valid Tic-Tac-Toe State
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题目描述：
LeetCode 794. Valid Tic-Tac-Toe State
A Tic-Tac-Toe board is given as a string array board. Return True if and only if it is possible to reach this board position during the course of a valid tic-tac-toe game.
The board ...
LeetCode Weekly Contest 73解题报告
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LeetCode.
LeetCode Weekly Contest 73是LeetCode举办的第七十七场正式周赛，共4道题目，比赛时长1.5小时。
比赛链接：https://leetcode.com/contest/leetcode-weekly-contest-73/
题解列表：
LeetCode 789. Escape The Ghosts