#include <algorithm> #include <cstdio> #include <iostream> using namespace std; int a[20005]; int main() { freopen("shelf.in", "r", stdin); freopen("shelf.out", "w", stdout); int n, m; cin >> n >> m; for (int i = 0; i < n; i++) { cin >> a[i]; } int g = 0; sort(a, a + n); for (int i = n - 1; i >= 0; i--) { m -= a[i]; // 这里需要添加合适的代码 g++; if (m <= 0){ cout << g; break; } } return 0; }