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为什么我这样推不对呢?#include<stdio.h>
#include<algorithm>
using namespace std;
struct pri
{
__int64 num;
__int64 price;
};
int main()
{
__int64 t,c,i,j;
pri a[110];
scanf("%lld",&t);
while(t--)
{
scanf("%lld",&c);
for(i=0;i<c;i++)
scanf("%lld %lld",&a[i].num,&a[i].price);
if(c==1)
{
printf("%lld\n",(a[0].num+10)*a[0].price);
continue;
}
for(i=1;i<c;i++)
for(j=0;j<i;j++)
if(a[j].num!=0)
if((a[j].num+10)*a[j].price>=a[j].num*a[i].price)
{
a[i].num+=a[j].num;
a[j].num=0;
}
__int64 sum=0;
for(i=0;i<c;i++)
if(a[i].num!=0)
sum+=(a[i].num+10)*a[i].price;
printf("%lld\n",sum);
}
}
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