Compilare: main.cpp: In function 'int DEFEU(int, int)': main.cpp:22:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[nod].size(); ++i) ~~^~~~~~~~~~~~~~~ main.cpp:21:24: warning: variable 'necuplat' set but not used [-Wunused-but-set-variable] int necuplati = 0, necuplat; ^~~~~~~~ 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 < G2[pos].size(); ++i) ~~^~~~~~~~~~~~~~~~ main.cpp:113:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (ans.size()!= 2 * N) ~~~~~~~~~~^~~~~~~~ main.cpp:117:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < ans.size(); ++i) ~~^~~~~~~~~~~~