Compilare: main.cpp: In function 'int cupleaza(int)': main.cpp:25:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<L[nod].size(); i++) ~^~~~~~~~~~~~~~ main.cpp:37:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<L[nod].size(); i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:61:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<L[x].size(); j++) ~^~~~~~~~~~~~