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Cod sursa(job #975268)
#include<stdio.h>
#include<algorithm>
using namespace std;
typedef struct cam
{
int c,t;
}cam;
cam v[100002];
int n,m;
int cmp(cam a,cam b)
{
if(a.c>b.c)
return 1;
return 0;
}
int bun(int x)
{
int s=0,a1,a2,i;
for(i=1;i<=n;++i)
{
a1=x/v[i].t;
a2=a1*v[i].c;
s+=a2;
if(s>=m)
return 1;
}
return 0;
}
void caut()
{
int s,d,m,l,i,a,x;
s=l=0;
d=1000000001;
while(s<=d)
{
m=(s+d)/2;
if(bun(m))
{
l=m;
d=m-1;
}
else
s=m+1;
}
printf("%d ",l);
for(i=1;i<=n;++i)
v[i].c=v[i].c*(l/v[i].t);
sort(v+1,v+1+n,cmp);
a=x=0;
for(i=1;i<=n;++i)
{
x+=v[i].c;
++a;
if(x>=m)
break;
}
printf("%d\n",a);
}
int main()
{
freopen("garaj.in","r",stdin);
freopen("garaj.out","w",stdout);
int i;
scanf("%d%d",&n,&m);
for(i=1;i<=n;++i)
{
scanf("%d%d",&v[i].c,&v[i].t);
v[i].t=v[i].t*2;
}
caut();
return 0;
}