摘要:
题目:The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. (LeetCode 51) Given an integ 阅读全文
摘要:
题目:Given an integer n, return the number of trailing zeroes in n!.(Leetcode 172) Note: Your solution should be in logarithmic time complexity. C++参考框架 阅读全文