#include<stdio.h> int main(){ int i,n; scanf("%d",&n); float sum=0.0; ; ; ;i<=n;i++){ sum=sum+1.0*b/a; int c=a; a=b; b=c+b; } printf("s=%.2f\n", sum); ; }…

Home Web Board ProblemSet Standing Status Statistics   Problem H: 整型数组运算符重载 Problem H: 整型数组运算符重载 Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 643  Solved: 401[Submit][Status][Web Board] Description 定义Array类: 1.拥有数据成员int length和int *mems,分别是数组中元素的个数…

Problem H High bridge, low bridge Q: There are one high bridge and one low bridge across the river. The river has flooded twice, why the high bridge is flooded twice but the low bridge is flooded only once? A: Because the lower bridge is so low that…

Problem H. Hiking in the Hills 题目连接: http://codeforces.com/gym/100531/attachments Description Helen is hiking with her friends in a highland. Their plan is to hike from their camp A to a beautiful showplace B. Unfortunately, Helen started feeling diz…

Problem H. Horrible Truth Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100610 Description In a Famous TV Show “Find Out” there are n characters and only one Horrible Truth. To make the series breathtaking all way long, the sc…

Problem H. Hard TestTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100342/attachments Description Andrew is having a hard time preparing his 239-th contest for Petrozavodsk. This time the solution to the problem is based on Di…

P4751 H’s problem(h)  时间: 1000ms / 空间: 655360KiB / Java类名: Main 背景 冬令营入学测试 描述 小H是一个喜欢逛街的女孩子,但是由于上了大学,DDL越来越多了,她不能一直都处于逛街的状态.为了让自己能够更加沉迷于学习,她规定一次逛街只逛T个单位的时间. 小H从1号店出发,从1号店走到第i号店需要花费ai的时间,这些店形成了一条直线,也就是说小H从第i号店走到第i+1号店需要花费的时间为a{i+1}-ai.若小H选择了第i号店并且进去逛,…

Problem Description 穿过幽谷意味着离大魔王lemon已经无限接近了! 可谁能想到,yifenfei在斩杀了一些虾兵蟹将后,却再次面临命运大迷宫的考验,这是魔王lemon设下的又一个机关.要知道,不论何人,若在迷宫中被困1小时以上,则必死无疑! 可怜的yifenfei为了去救MM,义无返顾地跳进了迷宫.让我们一起帮帮执着的他吧! 命运大迷宫可以看成是一个两维的方格阵列,如下图所示: H" title="Problem H"> yifenfei一开始在左…

Problem H. Password Service 题目连接: http://www.codeforces.com/gym/100253 Description Startups are here, startups are there. Startups are everywhere! Polycarp would like to have his own startup, too. His business idea is a password service. Have you not…

Problem H. Parallel Worlds 题目连接: http://opentrains.snarknews.info/~ejudge/team.cgi?SID=c75360ed7f2c7022&all_runs=1&action=140 Description Alex is a Baisuralen State University student. Alex and BSU live in two parallel worlds. As we know from scho…