Compilare: main.cpp: In function 'void BFS(int)': main.cpp:23:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<G[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:51:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<berari.size();j++) ~^~~~~~~~~~~~~~ main.cpp:64:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<sol.size();i++) ~^~~~~~~~~~~ main.cpp:35:27: warning: unused variable 'j' [-Wunused-variable] int n, m, p, i, x, y, j; ^