Compilare: main.cpp: In function 'int main()': main.cpp:100:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<muchii[elem.nod].size();++i) ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:138:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<muchii[elem.nod].size();++i) ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:167:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<coada.size();++i) ~^~~~~~~~~~~~~