Compilare: main.cpp: In function 'void dfs(int)': main.cpp:21:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[a].size(); ++i){ ~~^~~~~~~~~~~~~ main.cpp: In function 'bool nodcapc(int)': main.cpp:29:9: warning: unused variable 'vecin' [-Wunused-variable] int vecin,i,j,c,nrvcom = 0; ^~~~~ main.cpp:29:21: warning: unused variable 'nrvcom' [-Wunused-variable] int vecin,i,j,c,nrvcom = 0; ^~~~~~