#include<bits/stdc++.h>
using namespace std;
int a[101000];
int main()
{
int t,n,l;
scanf("%d",&t);
while(t--){
scanf("%d %d",&n,&l);
for(int i=0;i<n;i++)
scanf("%d",&a[i]);
sort(a,a+n);
int left=0, right=n-1;
int ans=0;
while(left<=right){
if(a[right]+a[left]>l){
--right;
}else {
--right;
++left;
}
++ans;
}
printf("%d\n",ans);
if(t) puts("");
}
return 0;
}
UVa1149 - Bin Packing
最新推荐文章于 2022-09-21 21:35:35 发布