Lifting the Stone Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5370 Accepted Submission(s): 2239 Problem Description There are many secret openings in the floor which are covered by a big heavy…

Lifting the Stone 题目链接: http://acm.hust.edu.cn/vjudge/contest/130510#problem/G Description There are many secret openings in the floor which are covered by a big heavy stone. When the stone is lifted up, a special mechanism detects this and activates…

题目: Lifting the Stone Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 168 Accepted Submission(s): 98   Problem Description There are many secret openings in the floor which are covered by a big he…

Lifting the Stone Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 230 Accepted Submission(s): 130   Problem Description There are many secret openings in the floor which are covered by a big heavy…

Lifting the Stone Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 1115 Description There are many secret openings in the floor which are covered by a big heavy stone. When the stone is lifted up…

题目连接:http://acm.hdu.edu.cn/showproblem.php?pid=1115 题意:给你N个点围成的一个多边形,让你求这个多边形的重心. 题解: 将多边形划分为若干个三角形. 若我们求出了每个三角形的重心和质量,可以构造一个新的多边形,顶点为所有三角形的重心,顶点质量为三角形的质量.这个新多边形的质量和重心与原多边形相同,即可使用第一种类型的公式计算出整个多边形的重心. 由于三角形的面积与质量成正比,所以我们这里用面积代替质量来计算. 多边形有可能为凹多边形,三角形有可…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1115# 大意:给你个n,有n个点,然后给你n个点的坐标,求这n个点形成的多边形的重心的坐标. 直接套模板,我也不知道什么意思.注意在POJ上面定义double时,输出f,如果输出lf则WA,HDU上面输出lf能A. #include <iostream> #include <string.h> #include <stdio.h> #include <algorith…

Problem Description There are many secret openings in the floor which are covered by a big heavy stone. When the stone is lifted up, a special mechanism detects this and activates poisoned arrows that are shot near the opening. The only possibility i…

Lifting the Stone Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Practice HDU 1115 Description There are many secret openings in the floor which are covered by a big heavy stone. When the stone is lifted up, a spe…

There are many secret openings in the floor which are covered by a big heavy stone. When the stone is lifted up, a special mechanism detects this and activates poisoned arrows that are shot near the opening. The only possibility is to lift the stone…