candies.cpp: In function 'std::vector<int> distribute_candies(std::vector<int>&, std::vector<int>&, std::vector<int>&, std::vector<int>&)':
candies.cpp:17:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
17 | for (int qw = 0; qw < l.size(); qw++) {
| ~~~^~~~~~~~~~
/usr/bin/ld: /tmp/cc2VgxCd.o: in function `main':
grader.cpp:(.text.startup+0x30e): undefined reference to `distribute_candies(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status