Compilare: user.c: In function ‘main’: user.c:45:5: warning: passing argument 1 of ‘fputs’ makes pointer from integer without a cast [enabled by default] fputs(result, out); ^ In file included from user.c:1:0: /usr/include/stdio.h:686:12: note: expected ‘const char * restrict’ but argument is of type ‘int’ extern int fputs (__const char *__restrict __s, FILE *__restrict __stream); ^ user.c:19:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp, "%s", s); ^ user.c:27:14: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, 200, fp); ^