POJ2151Check the difficulty of problems
摘要:
题目: 概率dp||组合数学; http://poj.org/problem?id=2151 #include<cstdio> #include<cstdlib> #include<cstring> #include<cmath> #include<iostream> #define LL long 阅读全文
posted @ 2019-05-29 20:58 Willems 阅读(85) 评论(0) 推荐(0) 编辑