Compilare: user.c:6:1: warning: data definition has no type or storage class [enabled by default] n,cur,poz,nlen,mvdown,high,mask; ^ user.c:6:1: warning: type defaults to ‘int’ in declaration of ‘n’ [enabled by default] user.c:6:3: warning: type defaults to ‘int’ in declaration of ‘cur’ [enabled by default] n,cur,poz,nlen,mvdown,high,mask; ^ user.c:6:7: warning: type defaults to ‘int’ in declaration of ‘poz’ [enabled by default] n,cur,poz,nlen,mvdown,high,mask; ^ user.c:6:11: warning: type defaults to ‘int’ in declaration of ‘nlen’ [enabled by default] n,cur,poz,nlen,mvdown,high,mask; ^ user.c:6:16: warning: type defaults to ‘int’ in declaration of ‘mvdown’ [enabled by default] n,cur,poz,nlen,mvdown,high,mask; ^ user.c:6:23: warning: type defaults to ‘int’ in declaration of ‘high’ [enabled by default] n,cur,poz,nlen,mvdown,high,mask; ^ user.c:6:28: warning: type defaults to ‘int’ in declaration of ‘mask’ [enabled by default] n,cur,poz,nlen,mvdown,high,mask; ^ user.c:7:1: warning: return type defaults to ‘int’ [enabled by default] main(){freopen("biti.in","r",stdin);freopen("biti.out","w",stdout); ^ user.c: In function ‘main’: user.c:10:16: warning: statement with no effect [-Wunused-value] set(v,0);poz=n;mvdown; ^ user.c:7:15: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] main(){freopen("biti.in","r",stdin);freopen("biti.out","w",stdout); ^ user.c:7:44: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] main(){freopen("biti.in","r",stdin);freopen("biti.out","w",stdout); ^ user.c:8:6: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^