poj3627

水题， 排序， 贪心

#include <iostream>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <algorithm>
using namespace std;

const int maxn = 20001;

int main()
{
	//freopen("D:\\t.txt", "r", stdin);
	int n, b;
	scanf("%d%d", &n, &b);
	int cow[maxn];
	for (int i = 0; i < n; i++)
		scanf("%d", &cow[i]);
	sort(cow, cow + n);
	int sum = 0;
	int i = n;
	while (sum < b)
	{
		i--;
		sum += cow[i];
	}
	printf("%d\n", n - i);
	return 0;
}