func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, k, cnt[1010], ans;   int main() {     cin >> n >> k;     for (int i = 1; i <= n; i++) {       int x;       cin >> x;       cnt[x]++;     }     for (int i = 1; i <= (n + 1) / 2; i++) {       int idx = -1, mx = -1;       for (int j = 1; j <= k; j++) {         if (cnt[j] > mx) {           mx = cnt[j];           idx = j;         }       }       if (cnt[idx] >= 2) {         ans += 2;         cnt[idx] -= 2;       } else {         ans += cnt[idx];         cnt[idx] = 0;       }     }     cout << ans << endl;     return 0;   }   