View Compilation Error

0_0_36338179_30242.c: In function 'main':
0_0_36338179_30242.c:9:15: error: 'n' undeclared (first use in this function)
   for(i=1; i<=n; i++) scanf("%s", dir[i]+1);
               ^
0_0_36338179_30242.c:9:15: note: each undeclared identifier is reported only once for each function it appears in