Compilare: user.cpp: In function ‘void BFS()’: user.cpp:46:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < v[k].size(); i++) ^ user.cpp: In function ‘void BUBBLE()’: user.cpp:64:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘int main()’: user.cpp:114:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i < rez.size(); i++) ^