Compilare: user.c: In function ‘main’: user.c:21:9: warning: variable ‘min’ set but not used [-Wunused-but-set-variable] int min , max; ^ user.c:27:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin , "%u" , &t); ^ user.c:30:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin , "%u" , &n); ^ user.c:33:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin , "%d %d" , &v[j].a , &v[j].b); ^