BestCoder Round #62 (div.2) HDU 5562 Clarke and food

Clarke and food

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536
K (Java/Others)

Total Submission(s): 216 Accepted Submission(s): 123



Problem Description

Clarke is a patient with multiple personality disorder. One day, Clarke turned into a cook, was shopping for food.

Clarke has bought n food.
The volume of the ith
food is vi.
Now Clarke has a pack with volume V.
He wants to carry food as much as possible. Tell him the maxmium number he can brought with this pack.

Input

The first line contains an integer T(1≤T≤10),
the number of the test cases.

For each test case:

The first line contains two integers n,V(1≤n≤105,1≤V≤109).

The second line contains n integers,
the ith
integer denotes vi(1≤vi≤109).

Output

For each test case, print a line with an integer which denotes the answer.

Sample Input

1
3 5
1 3 4

Sample Output

2

Hint:
We can carry 1 and 3, the total volume of them is 5.

Source

BestCoder Round #62 (div.2)

出题人：

可以证明从小到大一直拿，拿到不能拿为止是最优的。

所以排序一下即可。