//c++ //https://github.com/zzdxfei/hduacm/blob/master/1003.cpp #include #include using namespace std; void ComputeMaxSubstr(const vector& sets, int& max_sum, int& max_left, int& max_right) { max_sum = sets[0]; max_left = 0; max_right = 0; int current_left
#HDU-1811-Rank of Tetris HDU-1811-Rank of Tetris
//c //https://github.com/ssdutyuyang199401/hduacm/blob/master/1002.c #include<stdio.h> #include<string.h> int shu(char a) { return (a-'0'); } int main(){ char a[1000],b[1000]; int num[1001]; int n,i,j=1,al,bl,k,t; scanf("%d",&n); while(n--) { if(j!=1) prin
题目: http://acm.hdu.edu.cn/showproblem.php?pid=3336 水题一道,主要是测试数据很水 不解释,贴代码: #include <iostream> #inc
题目: http://acm.hdu.edu.cn/showproblem.php?pid=3336 水题一道,主要是测试数据很水 不解释,贴代码: #include <iostream> #incl
The least common multiple (LCM) of a set of positive integers is the smallest positive integer which is divisible by all the numbers in the set. For example, the LCM of 5, 7 and 15 is 105.
发布者:全栈程序员栈长,转载请注明出处:https://javaforall.cn/116976.html原文链接:https://javaforall.cn
思路:转化为2-sat问题,因为x仅仅能是0。1,c仅仅能是0,1。2那么问题就好办了,对于0, 1, 2相应各自是3种表达式,然后二分深度,搞2-sat就可以
Today is Ignatius’ birthday. He invites a lot of friends. Now it’s dinner time. Ignatius wants to know how many tables he needs at least. You have to notice that not all the friends know each other, and all the friends do not want to stay with strangers. One important rule for this problem is that if I tell you A knows B, and B knows C, that means A, B, C know each other, so they can stay in one table. For example: If I tell you A knows B, B knows C, and D knows E, so A, B, C can stay in one table, and D, E have to stay in the other one. So Ignatius needs 2 tables at least.
首先把作业按截止日期从小到大排序,如果日期相同按罚分降序,我们希望完成尽可能多的作业。然而仅靠日期排序并不是最优的,当一项作业超过截止日期时,我们不能就简单的加上罚分,我们要把它的罚分和前面完成作业的最小罚分相比(优先队列实现),选择罚分较小的那个。
题目大意:给定N,L,表示有N个加油站,每次加满油能够移动距离L,必须走直线,可是能够为斜线。然后给出sx,sy,ex,ey,以及N个加油站的位置,问说最少经过几个加油站,路过不加油也算。
这是一道拓扑排序的题,题意下面代码注释部分有,所以就说一下思路,只用看最后的关系是不是合法的,判断方法就是入度为0的个数等于n就说明没有成环否则就有环存在。可以定义一个sum来计数,每入队一次就说明有一个入度为0的点,所以sum加1,最后sum和n比较,相同就是YES,否则NO。如果不会用优先队列实现的可以去看这篇博客确定比赛名次
什么是拓扑排序? 简单来说,在做一件事之前必须先做另一(几)件事都可抽象为图论中的拓扑排序,比如课程学习的先后,安排客人座位等。 一个图能拓扑排序的充要条件是它是有向无环图。将问题转为图,比如A指向B代表完成B前要先完成A,那么用数组记录入度,从入度为0的开始搜索(bfs/dfs)和维护数组,即可得到拓扑排序。
多校10 1002 HDU 6172 Array Challenge 题意 image.png 题解 image.png 代码 #include <cstdio> #include <map> #include <cstdlib> #include <queue> using namespace std; #define mem(a,b) memset(a,b,sizeof(a)) #define rep(i,l,r) for (int i=l;i<r;++i) typedef unsigned long
现在有n个人,从1标号到n。同时有一些奇怪的约束条件,每个都形如:a必须在b之前。 同时,社会是不平等的,这些人有的穷有的富。1号最富,2号第二富,以此类推。有钱人就贿赂负责人,所以他们有一些好处。
BUPT2017 wintertraining(15) #5H HDU- 4947 题意 题解 官方题解: 代码 #include<cstdio> #include<cstring> #include
An entropy encoder is a data encoding method that achieves lossless data compression by encoding a message with "wasted" or "extra" information removed. In other words, entropy encoding removes information that was not necessary in the first place to accurately encode the message. A high degree of entropy implies a message with a great deal of wasted information; english text encoded in ASCII is an example of a message type that has very high entropy. Already compressed messages, such as JPEG graphics or ZIP archives, have very little entropy and do not benefit from further attempts at entropy encoding. …………………………
Rank of Tetris Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5415 Accepted Submission(s): 1514 Problem Description 自从Lele开发了Rating系统,他的Tetris事业更是如虎添翼,不久他遍把这个游戏推向了全球。 为了更好的符合那些爱好者的喜好,Lele又想了一
大家好,又见面了,我是全栈君,祝每个程序员都可以多学几门语言。 链接:http://acm.hdu.edu.cn/showproblem.php?pid=4814 题意:黄金比例切割点是 ,如今要求把
YAPTCHA Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2041 Accepted Submission(s): 1047
存边的时候,要头尾都存这个边。用dfs或者队列删点,再用并查集或者dfs确定联通块,然后统计联通块的点数,最后累加。
看这题之前先复习一下容斥原理,不然肯定看不懂,呃,如果第一次接触容斥原理的题,可能弄懂了容斥原理你还是看不懂代码,是的,等会你就知道了。
题目:http://acm.hdu.edu.cn/showproblem.php?pid=6109 题意:给n行数,a,b,e e为0表示两个数不相等,e为1表示相等。 要求划分数据 ,让每一组数
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4185 题意是输入n*n的地图,然后问最多有多少个1*2或者2*1的'#'。
Given three strings, you are to determine whether the third string can be formed by combining the characters in the first two strings. The first two strings can be mixed arbitrarily, but each must stay in its original order. For example, consider forming "tcraete" from "cat" and "tree": String A: cat String B: tree String C: tcraete As you can see, we can form the third string by alternating characters from the two strings. As a second example, consider forming "catrtee" from "cat" and "tree": String A: cat String B: tree String C: catrtee
BUPT2017 wintertraining(15) #5B HDU - 4936 2014 Multi-University Training Contest 7 F
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1083 题意是有n门课程,每一门课程有若干名学生,然后要求每门课程能不能选出一名学生当课代
//acm.hdu.edu.cn/showproblem.php?pid=3498 n个点,m条无向边,删除一个点会把与其相邻的点一起删掉,问最少删几次可以删掉所有点。
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2444 题意是有n个人,m个配对,问能不能根据m个将这些人分成两个集合,且集合中的任意两人
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2923 题意是输入n,c,r,表示有n个城市,c个坏了的车,r条路,然后输入一个地名表示当
发布者:全栈程序员栈长,转载请注明出处:https://javaforall.cn/117989.html原文链接:https://javaforall.cn
以前不是太会求期望的题目,就是做出来的要是靠一知半解的YY出来,昨天多校又碰到了,于是彻底搞了一把,现在算是撸通了。 具体学习资料查看 http://blog.csdn.net/zhoujiachengdhy/article/details/38056765 期望一般从后往前推,全期望公式很重要!这题的转移方程为dp[i]=((dp[i+1]+dp[i+2]+dp[i+3]+dp[i+4]+dp
大家好,又见面了,我是全栈君。 http://acm.hdu.edu.cn/showproblem.php?pid=2421 A^B 能够写成 p1^e1 * p2^e2 * …..*pk^ek。(A
/*比较苦逼的树形DP,慢慢来吧!不着急*/ #include <iostream> #include <vector> using namespace std; const int SIZE = 105; int roomNumber, trooperNumber; int cost[SIZE], brain[SIZE]; int dp[SIZE][SIZE]; /*dp[u][p]表示用 P 个士兵占领以 u 为根节点的子树所能获得的概率最大值*/ vector<int> adj[SIZE];
Count the Sheep Time Limit: 3000/1500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 686 Accepted Submission(s): 295 Problem Description Altough Skipping the class is happy, the new term still can drive luras anxi
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5971 题意是有n个人,m个匹配,x个good player,y个bad player,每
Skip the Class Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 401 Accepted Submission(s): 235 Problem Description Finally term begins. luras loves school so much as she could skip the class h
逃生 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1161 Accepted Submission(s): 368 Problem Description 糟糕的事情发生啦,现在大家都忙着逃命。但是逃命的通道很窄,大家只能排成一行。 现在有n个人,从1标号到n。同时有一些奇怪的约束条件,每个都形如:a必须在b之前。 同时,社会是不
就是直接申明一个vector的容器。然后直接用vector里面的操作比方 insert,erase等等操作。
项目管理 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1013 Accepted Submission(s): 360 Problem Description 我们建造了一个大项目!这个项目有n个节点,用很多边连接起来,并且这个项目是连通的! 两个节点间可能有多条边,不过一条边的两端必然是不同的节点。 每个节点都有一个能量值。 现
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 466 Accepted Submission(s): 238
大家好,又见面了,我是全栈君。 http://acm.hdu.edu.cn/showproblem.php?pid=4057 Problem Description Dr. X i
在文章Unity3D学习笔记4——创建Mesh高级接口通过高级API的方式创建了一个Mesh,里面还提到了一个SubMesh的概念。Mesh是对于三维物体对象的封装概念,一个很容易的需求是,有的地方我希望用到材质A,有的地方我希望用到材质B,我不想把这个Mesh进行拆分,那么很简单,就在这个Mesh中划分两个子Mesh就可以了。
A school bought the first computer some time ago(so this computer's id is 1). During the recent years the school bought N-1 new computers. Each new computer was connected to one of settled earlier. Managers of school are anxious about slow functioning of the net and want to know the maximum distance Si for which i-th computer needs to send signal (i.e. length of cable to the most distant computer). You need to provide this information.
Strategic Game Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5034 Accepted Submission(s): 2297 Problem Description Bob enjoys playing computer games, especially strategic games, but somet
#include <iostream> #include <stdio.h> #include <string.h> #include <stack> #include <queue> #include <map> #include <set> #include <vector> #include <math.h> #include <algorithm> using namespace std; const double pi = acos(-1.0); const int INF = 0x3f3f3f3
老感觉是贪心,一直没明白,我一直觉得贪心能做出来,区间DP做这个题,理解不了,索性,先放放,过两天回头再看看,刚开始从简单题开始,先做点简单题让自己理解。
Courses Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3767 Accepted Submission(s): 1800 Problem Description Consider a group of N students and P courses. Each student visits zero, one or
该文介绍了如何通过状态压缩动态规划方法计算最多可以完成的任务数量。对于每个任务,可以使用状态压缩来计算最少需要哪些工程师来完成。具体来说,对于每个任务,可以使用其依赖关系来计算其需要的工程师数量,然后使用状态压缩来计算在已知任务状态的情况下,可以确定哪些任务可以完成。最终,使用动态规划方法来计算在已知任务状态的情况下,可以确定哪些任务可以完成,并返回结果。
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