func_code_string: #include <bits/stdc++.h>   using namespace std;   long long n, a[33], ans;   map<long long, long long> us;   int main() {     cin >> n;     for (long long i = 1; i <= n; ++i) cin >> a[i];     sort(a + 1, a + 1 + n);     for (long long i = 1; i <= n; ++i) {       while (us[a[i]] && a[i] > 0) a[i]--;       ans += a[i];       us[a[i]] = 1;     }     cout << ans;   }   