ZOJ-1890

水题。。随便写写了

#include<stdio.h>#include<string.h>static int get_time(char *s){int hh = (s[0] - '0') * 10 + s[1] - '0';int mm = (s[3] - '0') * 10 + s[4] - '0';int ss = (s[6] - '0') * 10 + s[7] - '0';return hh * 3600 + mm * 60 + ss;}int main(){char s[20];int prev = 0, time;double speed = 0, sum = 0, temp;while (gets(s) != NULL){time = get_time(s);sum += (time - prev) * speed / 3600.0;prev = time;if (strlen(s) == 8)printf("%s %.2lf km\n", s, sum);else{sscanf(s, "%*s %lf", &temp);speed = temp;}}return 0;}