Submission #1247120

#	Time	Username	Problem	Language	Result	Execution time	Memory
1247120		sus	A Plus B (IOI23_aplusb)	C++20	Compilation error	0 ms	0 KiB

aplusb

int *smallest_sums(int n, int numbers1[], int numbers2[])
{
    ios::sync_with_stdio(0);
    // cin.tie(0);
    // int n;
    // cin >> n;
    // vector<int> numbers1(n);
    // vector<int> numbers2(n);
    // for (int i = 0; i < n; i++)
    // {
    //     cin >> numbers1[i];
    // }
    // for (int i = 0; i < n; i++)
    // {
    //     cin >> numbers2[i];
    // }
    multimap<int, int> sums;
    for (int i = 0; i < n; i++)
    {
        sums.insert({numbers1[i] + numbers2[0], 1});
    }
    // vector<int> final_numbers;
    int final_numbers[n];
    int next_sum;
    int current_index;
    for (int i = 0; i < n; i++)
    {
        auto first_element = *sums.begin();
        // final_numbers.push_back(first_element.first);
        final_numbers[i] = first_element.first;
        current_index = first_element.second;
        next_sum = first_element.first + numbers2[first_element.second];
        sums.erase(sums.begin());
        if (current_index + 1 != n)
        {
            sums.insert({next_sum, current_index + 1});
        }
    }

    // for (int num : final_numbers)
    //{
    //     cout << num << " ";
    // }
    return final_numbers;
}

Compilation message (stderr)

aplusb.cpp: In function 'int* smallest_sums(int, int*, int*)':
aplusb.cpp:3:5: error: 'ios' has not been declared
    3 |     ios::sync_with_stdio(0);
      |     ^~~
aplusb.cpp:17:5: error: 'multimap' was not declared in this scope
   17 |     multimap<int, int> sums;
      |     ^~~~~~~~
aplusb.cpp:17:14: error: expected primary-expression before 'int'
   17 |     multimap<int, int> sums;
      |              ^~~
aplusb.cpp:20:9: error: 'sums' was not declared in this scope
   20 |         sums.insert({numbers1[i] + numbers2[0], 1});
      |         ^~~~
aplusb.cpp:28:31: error: 'sums' was not declared in this scope
   28 |         auto first_element = *sums.begin();
      |                               ^~~~
aplusb.cpp:44:12: warning: address of local variable 'final_numbers' returned [-Wreturn-local-addr]
   44 |     return final_numbers;
      |            ^~~~~~~~~~~~~
aplusb.cpp:23:9: note: declared here
   23 |     int final_numbers[n];
      |         ^~~~~~~~~~~~~