Compilare: user.cpp: In function ‘int dfp1(int)’: user.cpp:30:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<gr[vf].size();i++) ^ user.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int dfp2(int, int)’: user.cpp:42:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<grt[vf].size();i++) ^ user.cpp:45:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void comprimgraf(int)’: user.cpp:50:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<gr[i].size();j++) ^ user.cpp: In function ‘int dfst(int)’: user.cpp:61:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<grtc[vf].size();i++) ^ user.cpp:67:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int dfacces(int, int)’: user.cpp:71:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<grn[vf].size();i++) ^ user.cpp:77:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int proces(int)’: user.cpp:82:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<grtc[vf].size();i++) ^ user.cpp:90:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^