2017年2月26日
POJ1430 Binary Stirling Numbers
摘要： @(POJ)[Stirling數, 排列組合, 數形結合] Description The Stirling number of the second kind S(n, m) stands for the number of ways to partition a set of n things 阅读全文
posted @ 2017-02-26 11:58 Zeonfai 阅读(325) 评论(0) 推荐(0) 编辑
HDU4372 Buildings
摘要： @(HDU)[Stirling數, 排列組合] Problem Description There are N buildings standing in a straight line in the City, numbered from 1 to N. The heights of all th 阅读全文
posted @ 2017-02-26 08:13 Zeonfai 阅读(169) 评论(0) 推荐(0) 编辑