Compilare: user.c: In function ‘main’: user.c:11:19: warning: unused variable ‘val’ [-Wunused-variable] int i,c,n,m,t,val,ramase,sunt; ^ user.c:10:15: warning: variable ‘z’ set but not used [-Wunused-but-set-variable] char s[2],z[2]; ^ user.c:10:10: warning: variable ‘s’ set but not used [-Wunused-but-set-variable] char s[2],z[2]; ^ user.c:9:30: warning: unused variable ‘r’ [-Wunused-variable] struct pnod start,*p,*u,*r; ^ user.c:16:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&m); ^ user.c:18:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%c",&nota); ^ user.c:29:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%c",&nota); ^