art.cpp: In function 'void solve(int)':
art.cpp:24:11: error: 'publish' was not declared in this scope
24 | int x = publish(v);
| ^~~~~~~
art.cpp:26:10: error: expected ';' before '+' token
26 | v = {i} + v;
| ^~
| ;
art.cpp:30:2: error: 'answer' was not declared in this scope
30 | answer(out);
| ^~~~~~
interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
20 | if(v.size() != N) {
| ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
36 | if(v.size() != N) {
| ~~~~~~~~~^~~~