HEU 2023 Average is not Fast Enough!
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/**************************************
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Problem: HEU 2023 Average is not Fast Enough!
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Time: 0.0070 s
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Memory: 260 k
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Accepted Time: 2009-04-06 16:10:50
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Tips: 还得加上0.5,满足精度
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**************************************/
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#include <stdio.h>
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int main()
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{
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int n;
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double d;
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scanf("%d%lf",&n,&d);
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int t;
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while(scanf("%d",&t)!=EOF)
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{
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int i,flag=1,hour,min,sec;
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char temp[20];
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hour=min=sec=0;
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for(i=0;i<n;i++)
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{
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scanf("%s",temp);
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if(flag==1)
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{
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if(temp[0]=='-')flag=0;
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else
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{
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int hh,mm,ss;
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sscanf(temp,"%d:%d:%d",&hh,&mm,&ss);
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hour+=hh;
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min+=mm;
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sec+=ss;
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}
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}
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}
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printf("%3d: ",t);
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if(flag==0)printf("-\n");
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else
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{
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double sum=hour*60*60+min*60+sec;
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sum/=d;
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sum+=0.5;
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int aa=(int)sum/60;
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int bb=(int)(sum-60*aa);
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printf("%d:%02d min/km\n",aa,bb);
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}
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}
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return 0;
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}
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