链接:https://ac.nowcoder.com/acm/contest/338/H来源:牛客网 题目描述 Kuangyeye is a dalao of the ACM school team of Hunan University. His favorite food are hamburgers. One day, Kuangyeye came to the KFC(or maybe McDonald) and saw n hamburgers on the counter.The w…

题意:有n群人,每个人有喜欢的汉堡配方:有m家店,给出每家店的每个汉堡的配方,如果存在某个汉堡,其配料表包含某个人喜欢的配方,则这个人喜欢这个汉堡所在的店家.问你对每群人,输出被喜欢的人数最多的店面是哪家. 直接把每家店所能满足的口味表全塞到哈希表里面,暴力枚举统计即可. 这里用了双关键字哈希表,比较巧妙,是绝对的O(1). #include<cstdio> #include<cstring> #include<vector> using namespace std;…

C. Hamburgers time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Polycarpus loves hamburgers very much. He especially adores the hamburgers he makes with his own hands. Polycarpus thinks that…

Polycarpus loves hamburgers very much. He especially adores the hamburgers he makes with his own hands. Polycarpus thinks that there are only three decent ingredients to make hamburgers from: a bread, sausage and cheese. He writes down the recipe of…

题目链接 Hamburgers 二分答案,贪心判断即可. #include <bits/stdc++.h> using namespace std; #define REP(i,n) for(int i(0); i < (n); ++i) #define LL long long char str[1010]; LL len; LL b, c, s, nb, nc, ns, pb, pc, ps; LL money; bool judge(LL x){ LL mb = x * b; LL…

Polycarpus loves hamburgers very much. He especially adores the hamburgers he makes with his own hands. Polycarpus thinks that there are only three decent ingredients to make hamburgers from: a bread, sausage and cheese. He writes down the recipe of…

此部分测试涉及到APUE V3中,第三章的图3-12到图3-14. 通过fcntl.h提供的功能,修改fd的文件属性,本处增加O_SYNC功能,并测试其效果. 本文涉及代码: tree ch3 ch3 ├── makefile.sync ├── mycat.c ├── set_fl.c ├── set_fl.h ├── sync.c └── test 1 不使用O_SYNC功能 mycat.c 代码: #include "../apue.h" #define BUFFSIZE 4096…

关于apue.3e中apue.h的使用 近来要学一遍APUE第三版,并于此开博做为记录. 先下载源文件: # url: http://http//www.apuebook.com/code3e.html curl -O http://www.apuebook.com/src.3e.tar.gz tar -zxvf src.3e.tar.gz cd apue.3e ls 从上面ls的结果看,其实完全看不明白这些目录与APUE书中代码的关系,或者有些目录可以猜测出是那一章.不过有个小技巧: ls -…

本篇文章主要介绍 _YYModelPropertyMeta 前边的内容 首先先解释一下前边的辅助函数和枚举变量,在写一个功能的时候,这些辅助的东西可能不是一开始就能想出来的,应该是在后续的编码过程中 逐步添加的. #define force_inline __inline__ __attribute__((always_inline)) 这行代码用到了C语言的内联函数 内联函数: 是用inline修饰的函数,内联函数在代码层次看和普通的函数结构一样,却不具备函数的性质,内联函数不是在调用时发生控…

#if __has_include(<YYModel/YYModel.h>) FOUNDATION_EXPORT double YYModelVersionNumber; FOUNDATION_EXPORT const unsigned char YYModelVersionString[]; #import <YYModel/NSObject+YYModel.h> #import <YYModel/YYClassInfo.h> #else #import "…