Shared code

#include <bits/stdc++.h>

using namespace std;

#define in(a)                                                                  \
  for (auto &x : a)                                                            \
    cin >> x;
#define out(a)                                                                 \
  for (auto x : a)                                                             \
    cout << x << " ";
#define pb push_back
#define ll long long
typedef vector<ll> vi;
typedef pair<ll, ll> pii;

void solve() {
  int n, x;
  cin >> n >> x;
  vector<int> coins(n, 0);
  for (auto &coin : coins) {
    cin >> coin;
  }
  vector<int> dp(x + 1, INT_MAX);
  dp[0] = 0;
  for (int i = 0; i <= x; i++) {
    for (auto coin : coins) {
      if (i + coin > x || dp[i] == INT_MAX)
        continue;
      dp[i + coin] = min(dp[i + coin], dp[i] + 1);
    }
  }

  cout << (dp[x] == INT_MAX ? -1 : dp[x]) << '\n';
}

int32_t main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);

  int t = 1;
  // cin >> t;

  while (t--) {
    solve();
  }

  return 0;
}