Compilare: user.cpp: In function ‘void DFSG(int)’: user.cpp:69:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<G[vf].size();i++) ^ user.cpp: In function ‘void DFST(int)’: user.cpp:79:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<T[vf].size();i++) ^ user.cpp: In function ‘void afisare()’: user.cpp:88:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {for (j=0;j<sol[i].size();j++) ^ user.cpp: In function ‘void citire()’: user.cpp:36:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&n,&m); ^ user.cpp:39:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&x,&y); ^