Description Inhabitants of the Wonderland have decided to hold a regional programming contest. The Judging Committee has volunteered and has promised to organize the most honest contest ever. It was decided to connect computers for the contestants us…

描述 http://poj.org/problem?id=1064 有n条绳子,长度分别为l[i].如果从它们中切割出k条长度相同的绳子的话,这k条绳子每条最长能有多少? Cable master Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 35271   Accepted: 7515 Description Inhabitants of the Wonderland have decided to hold a re…

poj 1064 Cable master 判断一个解是否可行 浮点数二分 题目链接: http://poj.org/problem?id=1064 思路: 二分答案,floor函数防止四舍五入 代码: #include <iostream> #include <stdio.h> #include <math.h> #include <algorithm> using namespace std; const int maxn = 10005; const…

POJ 1064 Cable master 一开始把 int C(double x) 里面写成了  int C(int x) ,莫名奇妙竟然过了样例,交了以后直接就wa. 后来发现又把二分查找的判断条件写错了,wa了n次,当 c(mid)<＝k时,令ub＝mid,这个判断是错的,因为要找到最大切割长度,当满足这个条件时,可能已经不是最大长度了,此时还继续缩小区间,自然就wa了,(从大到小递减,第一次满足这个条件的值,就是最大的值),正确的判断是当 c(mid)<k时,令ub＝mid,这样循环1…

题目传送门 /* 题意:n条绳子问切割k条长度相等的最长长度 二分搜索:搜索长度,判断能否有k条长度相等的绳子 */ #include <cstdio> #include <algorithm> #include <cstring> #include <cmath> using namespace std; ; const int INF = 0x3f3f3f3f; double w[MAXN]; int n, k; int check(double len…

Cable master Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 21071   Accepted: 4542 Description Inhabitants of the Wonderland have decided to hold a regional programming contest. The Judging Committee has volunteered and has promised to…

Cable master Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 21071   Accepted: 4542 Description Inhabitants of the Wonderland have decided to hold a regional programming contest. The Judging Committee has volunteered and has promised to…

题目链接: 传送门 Cable master Time Limit: 1000MS     Memory Limit: 65536K 题目描述 有N条绳子,它们长度分别为Li.如果从它们中切割出K条长度相同的绳子的话,这K条绳子每条最长能有多长?答案保留小数点后两位. 思路 二分搜索答案 #include<iostream> #include<cstdio> #include<cmath> #define EPS 1e-6 const int INF = 100000;…

Cable master Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 37865   Accepted: 8051 Description Inhabitants of the Wonderland have decided to hold a regional programming contest. The Judging Committee has volunteered and has promised to…

Cable master Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 29554   Accepted: 6247 Description Inhabitants of the Wonderland have decided to hold a regional programming contest. The Judging Committee has volunteered and has promised to…