func_code_string: #include <bits/stdc++.h>   #pragma GCC optimize( Ofast )   #pragma GCC optimize( unroll-loops )   #pragma GCC target( sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native )   using namespace std;   const int MAX = 1e3 + 5;   const int MOD = 1e9 + 7;   const int64_t INF = INT_MAX;   const int64_t _INF = INT_MIN;   int k, n;   int h[MAX];   signed main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     cin >> k;     while (k--) {       cin >> n;       for (int i = 1; i <= n; i++) cin >> h[i];       int ans = 0;       sort(h + 1, h + n + 1);       for (int i = 1; i <= n; i++) ans = max(ans, min(h[n - i + 1], i));       cout << ans <<   n ;     }   }   