Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 13639 Accepted Submission(s): 3328
2 2 Yili 10 500 Mengniu 20 1000 4 Yili 10 500 Mengniu 20 1000 Guangming 1 199 Yanpai 40 10000
Mengniu MengniuHintIn the first case, milk Yili can be drunk for 2 days, it costs 10 Yuan. Milk Mengniu can be drunk for 5 days, it costs 20 Yuan. So Mengniu is the cheapest.In the second case, milk Guangming should be ignored. Milk Yanpai can be drunk for 5 days, but it costs 40 Yuan. So Mengniu is the cheapest.
<span style="font-size:14px;">#include<stdio.h>
#include<algorithm>
using namespace std;
struct milk{
char log[110];
int p;
int v;
double xjb;
}a[110];
int cmp(milk x,milk y)
{
if(x.xjb!=y.xjb)
return x.xjb<y.xjb;
return x.v>y.v;
}
int main()
{
int n,i,m;
scanf("%d",&n);
while(n--)
{
scanf("%d",&m);
for(i=0;i<m;i++)
{
scanf("%s%d%d",a[i].log,&a[i].p,&a[i].v);
//getchar();
if(a[i].v>1200)
a[i].xjb=a[i].p*1.0/1200;
else
a[i].xjb=a[i].p*1.0/a[i].v;
}
sort(a,a+m,cmp);
for(i=0;i<m;i++)
{
if(a[i].v<200)
continue;
else
{
printf("%s\n",a[i].log);
break;
}
}
}
return 0;
}</span><span style="font-size:14px;">#include<stdio.h>
#include<stdlib.h>
#include<string.h>
struct milk{
char log[110];
int p;
int v;
double xjb;
}a[110];
int cmp(const void *a,const void *b)
{
if((*(milk *)a).xjb>(*(milk *)b).xjb)
return 1;
else if(((*(milk *)a).xjb<(*(milk *)b).xjb))
return -1;
else
return (((milk *)a)->v)<(((milk *)b)->v);
}
int main()
{
int t,i,n;
scanf("%d",&t);
while(t--)
{
scanf("%d",&n);
getchar();
for(i=0;i<n;i++)
{
scanf("%s %d %d",a[i].log,&a[i].p,&a[i].v);
getchar();
if(a[i].v>1200)
a[i].xjb=a[i].p*1.0/1200;</span><span style="font-size:14px;"> else
a[i].xjb=a[i].p*1.0/a[i].v;
}
qsort(a,n,sizeof(a[0]),cmp);
for(i=0;i<n;i++)
{
if(a[i].v<200)
continue;
else
{
printf("%s\n",a[i].log);
break;
}
}
}
return 0;
}
</span>hdu 1070(结构体排序),布布扣,bubuko.com
原文：http://blog.csdn.net/ice_alone/article/details/38435493