Compilare: user.cpp: In function ‘void DF(int)’: user.cpp:15:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<lista_adiac[x].size();++i) ^ user.cpp: In function ‘void buildRMQ()’: user.cpp:25:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<reprez_Euler.size();++i) ^ user.cpp:28:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1,p=2;p<=reprez_Euler.size();++i,p*=2) ^ user.cpp:31:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j+p<=reprez_Euler.size();++j) ^