Compilare: user.c: In function ‘main’: user.c:33:29: warning: unused variable ‘y’ [-Wunused-variable] int m,n,i,parse,j,k,y; ^ user.c:33:25: warning: unused variable ‘j’ [-Wunused-variable] int m,n,i,parse,j,k,y; ^ user.c:42:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&m); ^ user.c:43:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",sir); ^