Compilare: main.cpp: In function 'void dfs(int, std::vector<std::vector<int> >&, std::vector<std::pair<int, int> >&, std::vector<int>&)': main.cpp:32:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for (int i = 0; i < lisAdj[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void printOutput(const std::vector<std::pair<int, int> >&)': main.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for (int i = 1; i < solution.size(); ++i) | ~~^~~~~~~~~~~~~~~~~