OJ-Problems-Source/HDOJ/4442_autoAC.cpp
2016-09-06 13:31:25 +08:00

36 lines
713 B
C++

#include"stdio.h"
#include"string.h"
#include"stdlib.h"
struct A
{
__int64 a,b;
}E[100011];
int cmp(const void *a,const void *b)
{
struct A *c,*d;
c=(struct A *)a;
d=(struct A *)b;
__int64 t1,t2;
t1=(c->a)*(d->b);
t2=(d->a)*(c->b);
if(t1>t2) return 1;
else return -1;
}
int main()
{
int n;
int i,l;
int temp;
__int64 ans;
while(scanf("%d",&n),n)
{
for(i=0;i<n;i++) scanf("%I64d%I64d",&E[i].a,&E[i].b);
qsort(E,n,sizeof(E[0]),cmp);
ans=0;
temp=365*24*60*60;
for(i=0;i<n;i++) {ans+=E[i].a+ans*E[i].b;ans%=temp;}
printf("%I64d\n",ans);
}
return 0;
}