1511.cpp

这是哈尔滨工业大学acmOJ的源代码

/*  This Code is Submitted by wywcgs for Problem 1511 on 2005-12-31 at 01:52:26 */ 
#include <cstdio>

int main()
{
	int n, num, i;
	char line[32];
	double d;
	
	scanf("%d %lf", &n, &d);
	while(scanf("%d", &num) != EOF) {
		double t = 0;
		bool vaild = true;
		for(i = 0; i < n; i++) {
			scanf("%s", line);
			int h, m, s;
			if(sscanf(line, "%d:%d:%d", &h, &m, &s) == 3) t += h*60+m+(double)s/60;
			else vaild = false;
		}
		printf("%3d: ", num);
		if(!vaild) printf("-\n");
		else {
			t = t / d + 0.5 / 60;
			printf("%d:%02d min/km\n", (int)t, (int)((t-(int)t)*60));
		}
	}
	
	return 0;
}