hdu 5112 A Curious Matt

http://acm.hdu.edu.cn/showproblem.php?pid=5112

 1 #include <cstdio>
 2 #include <cstring>
 3 #include <algorithm>
 4 using namespace std;
 5 
 6 int t;
 7 int n;
 8 struct node
 9 {
10     int t,x;
11     bool operator<(const node &a)const
12     {
13         return t<a.t;
14     }
15 }p[10001];
16 
17 int main()
18 {
19     scanf("%d",&t);
20     for(int cas=1; cas<=t; cas++)
21     {
22         scanf("%d",&n);
23         for(int i=0; i<n; i++)
24         {
25             scanf("%d%d",&p[i].t,&p[i].x);
26         }
27         sort(p,p+n);
28         double ans=0;
29         for(int i=1; i<n; i++)
30         {
31             double v=(double)(abs((p[i].x-p[i-1].x))*1.0/(p[i].t-p[i-1].t));
32             ans=max(ans,v);
33         }
34         printf("Case #%d: %.2lf
",cas,ans);
35     }
36     return 0;
37 }
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原文地址:https://www.cnblogs.com/fanminghui/p/4229777.html