Compilare: user.c: In function ‘main’: user.c:7:13: warning: unused variable ‘p’ [-Wunused-variable] int i,j,p,n,m,a,b; ^ user.c:7:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,p,n,m,a,b; ^ user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp,"%d %d", &n,&m); ^ user.c:14:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp, "%d %d", &a,&b); ^ user.c:15:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp, "%d %d %d", &c,&d,&e); ^ user.c:29:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp, "%d", &v); ^