Compilare: main.cpp: In function 'void citire()': main.cpp:17:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1; i<n; i++) ~^~ main.cpp: In function 'void bfs(int)': main.cpp:50:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<v[aux.second].size(); j++) ~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=(i+1)*h; j>=i*f; j--) ~^~~~~ main.cpp:81:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (k=1; k<=h; k++) ~^~~