POJ 2501

 1 #include<iostream>
 2 #include<iomanip>
 3 #include<stdio.h>
 4 #include<string>
 5 #include<math.h>
 6 using namespace std;
 7
 8 int main()
 9 {
10     //freopen("acm.acm","r",stdin);
11     string s;
12     int i;
13     double speed = 0.0;
14     double road;
15     double time;
16     double time1;
17     double past;
18     time = 0;
19     past = 0;
20     road = 0;
21     getline(cin,s);
22     time = (double(s[0]-‘0‘)*10.0+double(s[1]-‘0‘))+(double(s[3]-‘0‘)*10.0+double(s[4]-‘0‘))/60.0+(double(s[6]-‘0‘)*10.0+double(s[7]-‘0‘))/3600.0;
23     if(s.length() > 8)
24     {
25         for(i =  9; i < s.length(); ++ i)
26         {
27             speed = speed*10.0 + double(s[i]-‘0‘);
28         }
29     }
30     else
31     {
32         cout<<s<<" "<<"0.00 km"<<endl;
33     }
34     time *= 60;
35     while(getline(cin,s))
36     {
37         if(s.length() > 8)
38         {
39             time1 = (double(s[0]-‘0‘)*10.0+double(s[1]-‘0‘))+(double(s[3]-‘0‘)*10.0+double(s[4]-‘0‘))/60.0+(double(s[6]-‘0‘)*10.0+double(s[7]-‘0‘))/3600.0;
40             time1 *= 60.0;
41             past += speed*(time1-time);
42             time = time1;
43             speed = 0;
44             for(i =  9; i < s.length(); ++ i)
45             {
46                 speed = speed*10.0 + double(s[i]-‘0‘);
47             }
48         }
49         if(s.length() == 8)
50         {
51             time1 = (double(s[0]-‘0‘)*10.0+double(s[1]-‘0‘))+(double(s[3]-‘0‘)*10.0+double(s[4]-‘0‘))/60.0+(double(s[6]-‘0‘)*10.0+double(s[7]-‘0‘))/3600.0;
52             time1 *= 60.0;
53             cout<<s<<‘ ‘;
54             cout<<setiosflags(ios::fixed)<<setprecision(2)<<(speed*(time1-time)+past)/60.0<<‘ ‘<<"km"<<endl;
55         }
56     }
57
58 }