#include <iostream>
#include <string>
#include <fstream>
using namespace std;
double second(string s) {
    double time=0;
    time+=((s[0]-'0')*10+s[1]-'0')*3600;
    time+=((s[3]-'0')*10+s[4]-'0')*60;
    time+=(s[6]-'0')*10+s[7]-'0';
    return time;
}    
int main() {
    fstream inf;
    inf.open("abc.txt",ios::in);
    string s;
    char c;
    double speed;
    double time;
    double  dis;
    double temp;
    int flag=0;
    while(inf>>s && inf.get(c)) {
        if(c==' ')break;
    }
    inf>>speed;    
    time=second(s); dis=0;
    while(inf>>s) {    
        inf.get(c);
        temp=second(s);
        if(flag==3600) temp+=flag;
        else if(temp<time) {
            flag=3600;
            temp+=flag;
        }           
        dis+=(temp-time)*speed/3600;
        time=temp;
        if(c==' ') {
            inf>>speed;
        }
        else {
            cout<<s<<' ';
            printf("%.2f km\n",dis);
        }
    }
    return 0;
}            
        
        
        
        
        
            
    

• 第一行没速度也要有输出吧。。 (1201) Judas 2005-10-10 10:24:10