A. Wizards' Duel time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Harry Potter and He-Who-Must-Not-Be-Named engaged in a fight to the death once again. This time they are located at opposit…

A. Wizards' Duel Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/591/problem/A Description Harry Potter and He-Who-Must-Not-Be-Named engaged in a fight to the death once again. This time they are located at opposite ends of…

题目链接:http://codeforces.com/problemset/problem/591/A 题目意思:其实看下面这幅图就知道题意了,就是Harry 和 He-Who-Must-Not-Be-Named 分别在走廊末端,各发射自己的impulse,其中Harry 的 impulse 速度为 p 米/s,He-...-Named (这个名字太长,姑且写成这样)为 q米/s.然后相遇之后各自回到它们的主人身边,再发射,问第二次相遇的时候,Harry的impulse 离他的位置距离是多少.…

题意: 在一条长度为l的走廊,两个人站在走廊的左右两端分别以p,q的速度走来,问他们相遇时离左端的距离是多少? 思路: 非常简单的暴力题,不解释. 代码如下: #include <iostream> #include <cstdio> #include <cstring> #include <fstream> #include <ctime> #include <cmath> #include <cstdlib> #inc…

水题 #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> using namespace std; int main() { double l,a,b; while(~scanf("%lf%lf%lf",&l,&a,&b)) { printf("%.4lf\n",l/(a+b)*a); } ; }…

题目传送门 水 A - Wizards' Duel 题目都没看清就写了,1e-4精度WA了一次... /************************************************ * Author :Running_Time * Created Time :2015/10/25 16:27:20 * File Name :A.cpp ************************************************/ #include <cstdio> #i…

D. Ciel and Duel time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Fox Ciel is playing a card game with her friend Jiro. Jiro has n cards, each one has two attributes: position (Attack or De…

B. Wizards and Huge Prize Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/167/problem/B Description One must train much to do well on wizardry contests. So, there are numerous wizardry schools and magic fees. One of such ma…

A. Wizards and Trolleybuses Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/167/problem/A Description In some country live wizards. They love to ride trolleybuses. A city in this country has a trolleybus depot with n trolle…

B. Wizards and Huge Prize time limit per test: 2 seconds memory limit per test: 256 megabytes input: standard input output:standard output One must train much to do well on wizardry contests. So, there are numerous wizardry schools and magic fees. On…