Domination Time Limit: 8 Seconds Memory Limit: 131072 KB Special Judge Edward is the headmaster of Marjar University. He is enthusiastic about chess and often plays chess with his friends. What's more, he bought a large decorative chessboar
104. Little shop of flowers time limit per test: 0.25 sec. memory limit per test: 4096 KB PROBLEM You want to arrange the window of your flower shop in a most pleasant way. You have F bunches of flowers, each being of a different kind, and at least a
D. Bag of mice time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output The dragon and the princess are arguing about what to do on the New Year's Eve. The dragon suggests flying to the mountains t
143. Long Live the Queen time limit per test: 0.25 sec. memory limit per test: 4096 KB The Queen of Byteland is very loved by her people. In order to show her their love, the Bytelanders have decided to conquer a new country which will be named accor
小故事: A * "1+1+1+1+1+1+1+1 =?" * A : "上面等式的值是多少" B : *计算* "8!" A *在上面等式的左边写上 "1+" * A : "此时等式的值为多少" B : *quickly* "9!" A : "你怎么这么快就知道答案了" A : "只要在8的基础上加1就行了" A : "所以你不用重新计
the algorithm of three version below is essentially the same, namely, Kadane's algorithm, which is of O(n) complexity. https://en.wikipedia.org/wiki/Maximum_subarray_problem the evolution of the implementations is to remove redundancy and do what is
Description “Farm Game” is one of the most popular games in online community. In the community each player has a virtual farm. The farmer can decide to plant some kinds of crops like wheat or paddy, and buy the corresponding crop seeds. After they gr
1225. Flags Time limit: 1.0 secondMemory limit: 64 MB On the Day of the Flag of Russia a shop-owner decided to decorate the show-window of his shop with textile stripes of white, blue and red colors. He wants to satisfy the following conditions: Stri
expectation Description 给出一棵带权值的树,我们假设从某个节点出发,到目标节点的时间为两个节点之间的最短路.由于出发节点不好选取,所以选在每个节点都有一定的概率,现在我们要求从出发点到目标节点的期望时间(即每个节点到目标点的时间*概率). 为了避免精度错误, 直接给出了每个节点所占的权值, 那么每个节点的概率就是节点权值/总权值和( 注意查看实际输出要求). Input 输入第一行为一个正整数 n 表示树的节点数目, 节点编号从 1 到 n. 接下来一行 n 个整数 vi
//POJ3377 //DP解法-解有规律的最短路问题 //Time:1157Ms Memory:12440K #include<iostream> #include<cstring> #include<cstdio> using namespace std; #define MAXN 1000005 typedef long long LL; int n; int dp[MAXN][3]; int sr, st, er, ed; int main() { //freo