Compilare: user.cpp: In function ‘int main()’: user.cpp:57:17: warning: unused variable ‘cod’ [-Wunused-variable] int i,j,x,y,cod,p,nod; ^ user.cpp:57:21: warning: unused variable ‘p’ [-Wunused-variable] int i,j,x,y,cod,p,nod; ^ user.cpp:57:23: warning: unused variable ‘nod’ [-Wunused-variable] int i,j,x,y,cod,p,nod; ^ user.cpp:58:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&n,&nrm); ^ user.cpp:60:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&x,&y); ^