774

//774
#include <cstdio>
#include <algorithm>
using namespace std;

int main(void) {
    FILE* fin = fopen("input.txt", "r");
    FILE* fout = fopen("output.txt", "w");

    int n, m;
    fscanf(fin, "%d%d", &n, &m);
    int a[n];
    for (int i = 0; i < n; ++ i)
        fscanf(fin, "%d", a + i);
    fclose(fin);

    sort(a, a + n);
    int out = 0;
    for (int i = n - 1; m > 0; m -= a[i], -- i, ++ out);
    fprintf(fout, "%d\n", out);
    fclose(fout);
    return 0;
}