Codeforces 609A USB Flash Drives

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cstdio>
#include <math.h>
#include <string>
#include <algorithm>
#include <vector>

using namespace std;

int n, m;
int temp[105];
int ans;

int main() {
	scanf("%d", &n);
	scanf("%d", &m);
	for (int i = 1;i <= n;++i) {
		scanf("%d", &temp[i]);
	}
	sort(temp + 1, temp + 1 + n);
	for (int i = n;i >= 1;--i) {
		m -= temp[i];
		ans++;
		if (m <= 0) {
			break;
		}
	}
	printf("%d\n", ans);
	return 0;
}