题目描述:http://poj.org/problem?id=1862 题目大意:你有n个数要合并,每两个数x,y合并后得到2*sqrt(x*y).求最后留下的一个数的最小值. 每合并一次,就会有数被开方,那么你越早合并的数被开放的次数越多,于是每次把最大的两个数合并即可.用到优先队列. 代码: #include<cstdio> #include<queue> #include<cmath> using namespace std; priority_queue<…

题目链接: PKU:http://poj.org/problem?id=1862 ZJU:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=543 Description Our chemical biologists have invented a new very useful form of life called stripies (in fact, they were first called in Russian -…

http://poj.org/problem?id=1862 题目大意: 有一种生物能两两合并,合并之前的重量分别为m1和m2,合并之后变为2*sqrt(m1*m2),现在给定n个这样的生物,求合并成一个的最小重量 思路: m1+m2 >=  2*sqrt(m1*m2) 所以每次取大的去合并,能变小. 直接优先队列就可以啦. #include<cstdio> #include<cmath> #include<queue> using namespace std;…

Stripies 直接上中文了 Descriptions 我们的化学生物学家发明了一种新的叫stripies非常神奇的生命.该stripies是透明的无定形变形虫似的生物,生活在果冻状的营养培养基平板菌落.大部分的时间stripies在移动.当他们两个碰撞,会有新stripie生成,而旧的不见了.经过长期研究,他们发现新stripies的体重不等于消失的stripies的体重,而是:如果一个质量为m1和m2的stripies相撞,生成的stripies体重是2*sqrt(m1*m2) 现在,科学…

Stripies Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 14151   Accepted: 6628 Description Our chemical biologists have invented a new very useful form of life called stripies (in fact, they were first called in Russian - polosatiki, bu…

Stripies Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 18198   Accepted: 8175 Description Our chemical biologists have invented a new very useful form of life called stripies (in fact, they were first called in Russian - polosatiki, bu…

(-￣▽￣)-* #include<iostream> #include<cstdio> #include<cmath> #include<algorithm> using namespace std; int main() { int n; ]; while(~scanf("%d",&n)) { ;i<n;i++) { int m; scanf("%d",&m); w[i]=m*1.0; } s…

原题链接:http://poj.org/problem?id=1862 简单题,贪心+优先队列主要练习一下stl大根堆 写了几种实现方式写成类的形式还是要慢一些... 手打的heap: 1: #include<cstdio> #include<cstdlib> #include<cmath> #include<iostream> class Solution{ public: ; int sz; double heap[Max_N]; inline void…

Stripies Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 10263   Accepted: 4971 Description Our chemical biologists have invented a new very useful form of life called stripies (in fact, they were first called in Russian - polosatiki, bu…

Description Our chemical biologists have invented a new very useful form of life called stripies (in fact, they were first called in Russian - polosatiki, but the scientists had to invent an English name to apply for an international patent). The str…