Compilare: main.cpp: In function 'int main()': main.cpp:61:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int i = 0; i < graf[u].size(); i++) | ~~^~~~~~~~~~~~~~~~ main.cpp:38:9: warning: variable 'parinte' set but not used [-Wunused-but-set-variable] 38 | int parinte[n + 1]; | ^~~~~~~ main.cpp:39:10: warning: variable 'inQ' set but not used [-Wunused-but-set-variable] 39 | bool inQ[n + 1]; | ^~~