【FOJ】Problem 1164 Average is not Fast Enough!

Problem 1164 Average is not Fast Enough!.

The meaning of problems

• Calculation of grade point average min / km (one thousand meters run how many minutes)
• Input:
  Stage Number n (int 1 <= n < = 20), Total Distance d (double 0 <= d < = 200)
  ranks number no, 1 race results, race results 2, ...... (h: mm: SS)
  -: -: - represents the abandoned match
  ended EOF
• Output:
  no (right justified 3): minutes: seconds (00) min / km
  if people abandoned match
  no (right justified 3): -

Thinking

Various input and output formats unfamiliar Kusi

• For each team:
  one by one for each stage of the read results, if h = '-', skip the rest of the results, outputs '-'
  otherwise accumulate h, m, s, all in terms of s, s / d s calculated / km, converted into a min / km

Code

#include<cstdio>
using namespace std;

int main(){
	int n, no, m, s;
	char h, temp[400];
	double d, sum;
	scanf("%d%lf", &n, &d);
	while(scanf("%d", &no)!=EOF){
		sum = 0;
		for(int i=0; i<n; i++){
			scanf(" %c", &h);
			if(h=='-'){
				gets(temp);
				break;
			}
			scanf(":%d:%d", &m, &s);
			sum += (h-'0')*3600;
			sum += m*60;
			sum += s;
		}
		if(h=='-')
			printf("%3d: -\n", no);
		else{
			sum = sum/d;
			m = sum/60;
			s = (int)(sum - m*60 + 0.5);
			if(s==60){
				m++;
				s = 0;
			}
			printf("%3d: %d:%02d min/km\n", no, m, s);
		}
	}
	return 0;
}