Compilare: main.cpp: In function 'void dfs(int)': main.cpp:11:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[x].size();i++) ~^~~~~~~~~~~~ main.cpp:15:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (din[nod].size()>maxim1) ~~~~~~~~~~~~~~~^~~~~~~ main.cpp:29:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[x].size();i++) ~^~~~~~~~~~~~ main.cpp:32:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=1;j<din[nod].size();j++) ~^~~~~~~~~~~~~~~~ main.cpp:37:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=1;j<din[x].size();j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'bool val(long double)': main.cpp:50:9: warning: unused variable 'i' [-Wunused-variable] int i; ^