题意: 给定n<=1000个小兵,A每次都能使小兵掉1点血,B每次能使所有小兵掉1点血,A.B轮流攻击,每次轮到A他会选择是否攻击,轮到B必须攻击.求A最多能杀死多少小兵.(当小兵血量为1时被攻击到视为被杀死) 思路: 如果所有小兵血量都不一样,A必定能杀死所有小兵.如果有小兵血量相同,那么A必定会攻击一些小兵使他们血量不同.所以我们可以把A的攻击分为两类:用来刚好杀死小兵的一次, 和用来使小兵血量不同的攻击. 我们可以用贪心的思想预处理出怎样用最小的攻击次数让小兵的血量都不同. 然后我们可以用…

HDU 4974 A simple water problem pid=4974" target="_blank" style="">题目链接 签到题,非常easy贪心得到答案是(sum + 1) / 2和ai最大值的最大值 代码: #include <cstdio> #include <cstring> #include <algorithm> using namespace std; const int N =…

http://acm.hdu.edu.cn/showproblem.php?pid=4976 2014 Multi-University Training Contest 10 1006 A simple greedy problem. Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 20    Accepted Submission(s…

A simple greedy problem. Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 476    Accepted Submission(s): 193 Problem Description Victor and Dragon are playing DotA. Bored of normal games, Victor…

链接: http://acm.hdu.edu.cn/showproblem.php?pid=1257 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=28195#problem/D 最少拦截系统 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 12863    Accepted…

A simple probability problem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 43    Accepted Submission(s): 14 Problem Description Equally-spaced parallel lines lie on an infinite plane. The sep…

任意门:http://acm.hdu.edu.cn/showproblem.php?pid=1757 A Simple Math Problem Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6621    Accepted Submission(s): 4071 Problem Description Lele now is thin…

A Simple Math Problem Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2441    Accepted Submission(s): 1415 Problem Description Lele now is thinking about a simple function f(x). If x < 10 f(x) =…

题目 A Simple Math Problem 解析 矩阵快速幂模板题 构造矩阵 \[\begin{bmatrix}a_0&a_1&a_2&a_3&a_4&a_5&a_6&a_7&a_8&a_9\\ 1&0&0&0&0&0&0&0&0&0\\ 0&1&0&0&0&0&0&0&0&0\\ 0&…

A Simple Math Problem [题目链接]A Simple Math Problem [题目类型]矩阵快速幂 &题解: 这是一个模板题,也算是入门了吧. 推荐一个博客:点这里 跟着这个刷,应该就可以了 &代码: #include <cstdio> #include <iostream> #include <set> #include <cmath> #include <cstring> #include <al…