Compilare: user.c: In function ‘main’: user.c:42:25: warning: variable ‘lmax’ set but not used [-Wunused-but-set-variable] int max = -1, j, cnt, lmax; ^ user.c:30:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^ user.c:35:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &a, &b ); ^