Submission #1247124

#	Time	Username	Problem	Language	Result	Execution time	Memory
1247124		sus	A Plus B (IOI23_aplusb)	C++20	Compilation error	0 ms	0 KiB

aplusb

#include <bits/stdc++.h>
using namespace std;


int *smallest_sums(int n, int numbers1[], int numbers2[])
{
    ios::sync_with_stdio(0);
    multimap<int, int> sums;
    for (int i = 0; i < n; i++)
    {
        sums.insert({numbers1[i] + numbers2[0], 1});
    }
    int final_numbers[n];
    int next_sum;
    int current_index;
    for (int i = 0; i < n; i++)
    {
        auto first_element = *sums.begin();
        
        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});
        }
    }
    return final_numbers;
}

Compilation message (stderr)

aplusb.cpp: In function 'int* smallest_sums(int, int*, int*)':
aplusb.cpp:29:12: warning: address of local variable 'final_numbers' returned [-Wreturn-local-addr]
   29 |     return final_numbers;
      |            ^~~~~~~~~~~~~
aplusb.cpp:13:9: note: declared here
   13 |     int final_numbers[n];
      |         ^~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccHDILun.o: in function `main':
grader.cpp:(.text.startup+0x251): undefined reference to `smallest_sums(int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status