Compilare: main.cpp: In function 'int find(int)': main.cpp:46:1: warning: no return statement in function returning non-void [-Wreturn-type] 46 | } | ^ main.cpp: In function 'int main()': main.cpp:129:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 129 | for(int i = 0; i < sol.size(); i++){ | ~~^~~~~~~~~~~~