Compilare: main.cpp: In function 'void bfs()': main.cpp:39:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for (int i=0; i<la[nod].size(); i++) | ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:54:12: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] 54 | citire("bfs.in",n,m,s,la); | ^~~~~~~~