#include <bits/stdc++.h> #define ll long long int using namespace std; void mainSolve() { int n, x; cin >> n >> x; vector<int> v(n); for (int i = 0; i < n; i++) cin >> v[i]; int ans1 = 0; for (int h : v) ans1 = max(ans1, h); int ans2 = 0; for (int h : v) { ans2 += (h / x + (h % x != 0)); } int ans = min(ans1, ans2); cout << ans << endl; } int main() { #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif int t; cin >> t; while (t--) { mainSolve(); } return 0; }