Compilare: main.cpp: In function 'int main()': main.cpp:76:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for (dir = 0; dir < dlin.size(); dir++) { | ~~~~^~~~~~~~~~~~~ main.cpp:53:12: warning: unused variable 'm' [-Wunused-variable] 53 | int n, m, i, dir; | ^