Compilare: main.cpp: In function 'int main()': main.cpp:97:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | for (int i = 0; i < paths.size(); i++) { | ~~^~~~~~~~~~~~~~ main.cpp:103:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 103 | for (int j = 0; j < path.size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp:80:9: warning: 'X' may be used uninitialized [-Wmaybe-uninitialized] 80 | int X; | ^