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感觉自己没有写错呀~给的数据还有讨论的测试的数据都过了为什么还是wa#include<iostream>
#include<math.h>
using namespace std;
struct p{
int v;
int t;
double tt;
};
int com(const void *a,const void *b)
{
struct p *aa,*bb;
aa=(struct p*)a;
bb=(struct p *)b;
return int((*aa).tt-(*bb).tt);
}
int main()
{
int n,m,i,j;
struct p ps[10000];
while(cin>>n&&n!=0)
{
for(i=0;i<n;i++){
cin>>ps[i].v>>ps[i].t;
if(ps[i].t<0)
ps[i].tt=0;
else
ps[i].tt=(4500*3.6/ps[i].v)+ps[i].t;
}
qsort(ps,n,sizeof(p),com);
for(i=0;i<n;i++)
if(ps[i].tt!=0)
break;
int k=ceil(ps[i].tt);
cout<<k<<endl;
}
}
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