Compilare: main.cpp: In function 'void BFS()': main.cpp:28:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<a[x].size();i++) { ~^~~~~~~~~~~~ main.cpp: In function 'int NumarDrumuri(int)': main.cpp:50:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<a[x].size();i++) { ~^~~~~~~~~~~~ main.cpp: In function 'void Cautare()': main.cpp:73:9: warning: unused variable 'val1' [-Wunused-variable] int val1=NumarDrumuri(py1); ^~~~