Compilare: user.cpp: In function ‘void bfs()’: user.cpp:28:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<muchii[x].size();i++){ ^ user.cpp: In function ‘void afis(int)’: user.cpp:43:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<predec[p].size();i++){ ^ user.cpp: In function ‘int main()’: user.cpp:68:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<solutie.size();i++){ ^