func_code_string: #include <bits/stdc++.h>   constexpr int mod = 1e9 + 7;   int main() {    using namespace std;    ios_base::sync_with_stdio(false), cin.tie(nullptr);    int tt; cin >> tt;    while (tt--) {     int n, k; cin >> n >> k;     vector<uint16_t> a(n);     for (uint16_t &x : a) cin >> x;     sort(a.begin(), a.end(), greater<uint16_t> ());     int N = 1, M = 1;     for (int i = k - 2; i >= 0 && a[i] == a[k - 1]; --i) ++N, ++M;     for (int i = k; i < n && a[i] == a[k - 1]; ++i) ++N;     auto qpow = [&](int a, int b) -> int {      int res = 1;      while (b) {       if (b & 1) res = 1ll * res * a % mod;       a = 1ll * a * a % mod, b >>= 1;      }      return res;     };     auto C = [&](int N, int M) -> int {      int res = 1;      for (int i = 0; i < M; ++i)       res = 1ll * res * (N - i) % mod * qpow(i + 1, mod - 2) % mod;      return res;     };     cout << C(N, M) <<   n ;    }   }