B. Amr and Pins time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Amr loves Geometry. One day he came up with a very interesting problem. Amr has a circle of radius r and center in point (x, …

B. Amr and Pins time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Amr loves Geometry. One day he came up with a very interesting problem. Amr has a circle of radius r and center in point (x, …

A. Amr and Music time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Amr is a young coder who likes music a lot. He always wanted to learn how to play music but he was busy coding so he got an…

题目传送门 /* 贪心水题 */ #include <cstdio> #include <algorithm> #include <iostream> #include <cmath> #include <cstring> #include <vector> #include <set> #include <map> #include <string> using namespace std; ;…

A. Amr and Music (贪心) 水题,没能秒切,略尴尬. #include <cstdio> #include <algorithm> using namespace std; +; int a[maxn], r[maxn], ans[maxn]; int cmp(int i, int j) { return a[i] < a[j]; } int main() { //freopen("in.txt", "r", stdin…

解题思路:一开始自己想的是找出每一次旋转所得到的圆心轨迹,将想要旋转到的点代入该圆心轨迹的方程,如果相等,则跳出循环,如果不相等,则接着进行下一次旋转.后来看了题解,发现,它的旋转可以是任意角度的,所以旋转后的圆心应该在一个区域,而没有固定的圆心轨迹的方程. 如图所示,设c0为最初给出的圆,令圆c0绕O1点旋转,则对于绕O1点这一点的旋转来说,c1为其旋转后所得到的圆心轨迹,则可以看到,通过1次旋转后,距离最近为0,距离最远为线段OO2=2r, 对于第二次旋转,选取O2为圆心,作圆,再令圆c2绕…

C. Amr and Chemistry Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/558/problem/C Description Amr loves Chemistry, and specially doing experiments. He is preparing for a new interesting experiment. Amr has n different type…

B. Amr and The Large Array Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/558/problem/B Description Amr has got a large array of size n. Amr doesn't like large arrays so he intends to make it smaller. Amr doesn't care abou…

C. Guess Your Way Out! time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Amr bought a new video game "Guess Your Way Out!". The goal of the game is to find an exit from the maze that loo…

Amr loves Chemistry, and specially doing experiments. He is preparing for a new interesting experiment. Amr has n different types of chemicals. Each chemical i has an initial volume of ai liters. For this experiment, Amr has to mix all the chemicals…