HDU 4451 Dressing

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HDU 4451 Dressing 题目链接http://acm.split.hdu.edu.cn/showproblem.php?pid=4451 Description Wangpeng has N clothes, M pants and K shoes so theoretically he can have N×M×K different combinations of dressing. One day he wears his pants Nike, shoes Adiwang t…

【HDU 4451 Dressing】水题，组合数

有衣服.裤子.鞋数量分别为n,m,k,给出p对不和谐的衣-裤或裤-鞋搭配,问一共有多少种和谐的衣裤鞋的搭配. 全部的组合有Cn1Cm1Ck1种. 设p对中有p1对衣-裤,p2对裤-鞋,则不和谐的搭配共有p1*Ck1+p2*Cn1种,但有被重复计算两次的搭配共p3对,它们引用了同一裤.设裤 i 在p1被引用 li 次,在p2被引用 ri 次,则p3=∑(1*Cli1Cri1).所以答案为n*m*k-p1*k-p2*n+p3 #include <cstdio> #include <cstri…

hdu 4451 Dressing 排列组合/水题

Dressing Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2964 Accepted Submission(s): 1291 Problem Description Wangpeng has N clothes, M pants and K shoes so theoretically he can have N×M×K differ…

hdu 4451 Dressing 衣服裤子鞋简单容斥

Dressing Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3735 Accepted Submission(s): 1681 Problem Description Wangpeng has N clothes, M pants and K shoes so theoretically he can have N×M×K…

hdu 4451 37届金华赛区 J题

题意:给出衣服裤子鞋子的数目,有一些衣服和裤子,裤子和鞋子不能搭配,求最终的搭配方案总数 wa点很多,我写wa了很多次,代码能力需要进一步提升 #include<cstdio> #include<iostream> #include<algorithm> #include<cstring> #include<cmath> #include<queue> #include<map> using namespace std;…

HDU 4451 容斥原理

题目大意: n件衣服,m条裤子,k双鞋子进行搭配妈妈指明了哪些衣服和裤子不能搭配,哪些裤子和鞋子不能搭配,问最后有几种搭配方法先假设都能搭配 n*m*k 每次遇到衣服和裤子不能搭的,就要减一次k,同时记录这个衣服和裤子出现的次数,避免以后重复减去的可以加回来裤子和鞋子也是同样道理 #include <iostream> #include <cstdio> #include <cstring> using namespace std; ; ] , pa[N][] ,…

hdu 4046 Panda 树状数组

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4046 When I wrote down this letter, you may have been on the airplane to U.S. We have known for 15 years, which has exceeded one-fifth of my whole life. I still remember the first time we went to the mov…