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29 lines
625 B
C++

#include <cstdio>
#include <algorithm>
using namespace std;
typedef long long ll;
const int N=1e5+10;
ll x[N],y[N],s[N];
int main()
{
int T,n,m;
scanf("%d",&T);
while(T--)
{
scanf("%d%d",&n,&m);
for(int i=0; i<n; i++)
scanf("%lld%lld",x+i,y+i),s[i]=x[i]*y[i];
s[n]=1e16;
for(int i=n; i; i--)
s[i-1]=min(s[i-1],s[i]);
while(m--)
{
ll q;
scanf("%lld",&q);
int pos=lower_bound(x,x+n,q)-x-1;
printf("%lld\n",min(y[pos]*q,s[pos+1]));
}
}
return 0;
}