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: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:25:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.c:28:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&a,&b); ^