可能是史上最弱的验题人—— Problem A (小)模拟. #include <bits/stdc++.h> using namespace std; int T; int main(){ scanf("%d", &T); while (T--){ char rk[10]; scanf("%s", rk); int n = strlen(rk); for (int i = 0; i < 3 - n; ++i) putchar(' ');…

题目地址:http://acm.hdu.edu.cn/showproblem.php?pid=6287 Summarize: 1.分解质因数: 2.二分查找函数lower_bound与upper_bound: 3.注意输入输出超时与初始化: #include<iostream> #include<cstdio> #include<cstring> #include<vector> #include<algorithm> using namespa…

题目地址:http://acm.hdu.edu.cn/showproblem.php?pid=6288 Summarize:1.二分查找答案: 2.自带log函数精度不够,需自己写: 3.注意二分递归的左右区间: 4.计算中可能爆LL,故需尽可能做一步就判断一次: #include<iostream> #include<cstdio> #include<cmath> using namespace std; #define LL long long LL T, a, b…

这是CCPC女生专场的一道dp题.大佬们都说它简单,我并没有感到它有多简单. 先说一下题意:在一条直线上,有n个教室,现在我要在这些教室里从左到右地建设一些作为糖果屋,每个教室都有自己的坐标xi 和建造糖果屋的费用ci , 如果在这里建造一个糖果屋,那么花费ci ,如果不建造糖果屋,则花费是当前教室的坐标与左边最靠近当前教室的糖果屋坐标之差,问最小花费. 一看这是个求最优解的问题,应该明白这是个dp问题,现在来考虑该问题状态的定义: 当我建设到第i个教室的时候,我有两种选择,建糖果屋或者不建糖果…

2018 CCPC网络赛 Buy and Resell 题目描述:有一种物品,在\(n\)个地点的价格为\(a_i\),现在一次经过这\(n\)个地点,在每个地点可以买一个这样的物品,也可以卖出一个物品,问最终赚的钱的最大值. solution 用两个堆来维护,一个堆维护已经找到卖家的,一个堆维护还没找到卖家的. 对于第\(i\)个地点,在已经找到卖家的堆里找出卖的钱的最小值,如果最小值小于\(a_i\),则将卖家换成\(i\),然后将原来的卖家放到没找到卖家的那里:如果最小值对于\(a_i\)…

TYPE: Onsite Contest NAME: 2018 - CCPC - Guilin PLAT: HUSTOJ TIME: 2018/10/28 09:00-14:00 CST LOCA: Guilin University Of Electronic Technology TEAM: Reconquista [lsmll, jiangshibiao, lzw4896s] RANK: 3/188 1.60% (Including unofficial teams) SOLVE: 7/1…

Deleting Edges Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 567    Accepted Submission(s): 210 Problem Description Little Q is crazy about graph theory, and now he creates a game about grap…

Happy Necklace Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 1146    Accepted Submission(s): 491 Problem Description Little Q wants to buy a necklace for his girlfriend. Necklaces are single…

Graph Theory Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 1796    Accepted Submission(s): 750 Problem Description Little Q loves playing with different kinds of graphs very much. One day he…

Building Shops Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 701 Accepted Submission(s): 265 Problem Description HDU’s n classrooms are on a line ,which can be considered as a number line. Eac…