hdu 2317 Nasty Hacks

发布时间:2017-09-13 12:38:17
hdu 2317 Nasty Hacks

题意:不做广告的收入是 r ,做广告的收入是 e - c (预期收入-广告费),水题不解释。。。

#include using namespace std; int main(){ int n,r,e,c; cin>>n; while(n--){ cin>>r>>e>>c; if(r>e-c){ cout<<"do not advertise"<Nasty Hacks 讨厌的黑客 Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 2863 Accepted Submission(s): 2233 Problem Description You are the CEO of Nasty Hacks Inc. , a company that creates small pieces of malicious software which teenagers may use to fool their friends. 你是黑客公司的首席执行官,该公司创造了小块的恶意软件,青少年可能使用他来愚弄他们的朋友。 The company has just finished their first product and it is time to sell it. 该公司已经完成了第一个产品,是时候出售他了。 You want to make as much money as possible and consider advertising in order to increase sales. 你想尽可能多赚钱,是否考虑广告来增加销售。 You get an analyst to predict the expected revenue, both with and without advertising. 你得分析做广告与不做广告分别得到的预期收益是多少。 You now want to make a decision as to whether you should advertise or not, given the expected revenues. 你现在必须做一个决定,做还是不做,输出额外的收益。 Input The input consists of n cases, and the first line consists of one positive integer giving n. 输入包含多组测试事件,第一行是一个正整数n, The next n lines each contain 3 integers, r, e and c. 接下来的n行都有3个整数, r , e , c 这三个字符; The first, r, is the expected revenue if you do not advertise, 如果你不做广告,r 表示预期收益; the second, e, is the expected revenue if you do advertise, and the third, c, is the cost of advertising. 如果你做广告,e 表示预期收益,c 表示广告费用。 You can assume that the input will follow these restrictions:-106 ≤ r, e ≤ 106 and 0 ≤ c ≤ 106. 你可以认为输入的数据在如下范围内,-106 ≤ r,e ≤ 106 and 0 ≤ c ≤ 106 。 Output Output one line for each test case: “advertise”, “do not advertise” or “does not matter”, 每一个测试事件,在单独的一行输出结果。“advertise”,“do not advertise” or “does not matter”。 presenting whether it is most profitable to advertise or not, or whether it does not make any difference. 提出r,e,c这三者哪一个是最有利的。 Sample Input3 0 100 70 100 130 30 -100 -70 40
Sample Output advertise does not matter do not advertise
Source Nordic 2006

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