Eroare de compilare: user.c: In function ‘cmmdc’: user.c:7:16: error: ‘m’ undeclared (first use in this function) return m; ^ user.c:7:16: note: each undeclared identifier is reported only once for each function it appears in user.c:9:9: warning: implicit declaration of function ‘euclid_gcd_recur’ [-Wimplicit-function-declaration] return euclid_gcd_recur(b, a % b);} ^ user.c: In function ‘main’: user.c:28:9: warning: passing argument 1 of ‘scanf’ from incompatible pointer type [enabled by default] scanf(f,"%d %d",&a,&b); ^ In file included from /usr/include/features.h:357:0, from /usr/include/stdlib.h:25, from user.c:1: /usr/include/stdio.h:452:12: note: expected ‘const char * restrict’ but argument is of type ‘struct FILE *’ extern int __REDIRECT (scanf, (__const char *__restrict __format, ...), ^ user.c: In function ‘cmmdc’: user.c:9:9: warning: control reaches end of non-void function [-Wreturn-type] return euclid_gcd_recur(b, a % b);} ^ user.c: In function ‘main’: user.c:25:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.c:28:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf(f,"%d %d",&a,&b); ^