About extra-terrestrials problem

Question

I'm stuck with this problem . 2/5 tests failed. Please help me what is wrong with this code

#include <stdio.h>
#include <string.h>
int main()
{ int i,n;
char b[100],a[100];
scanf("%[^\n]%*c",b);
n=strlen(b);
for (i=0;i<n;i++)
{ a[n-1-i]=b[i];}
printf("%s",a);
return 0;
}

Answer 1

Seems fine. May be adding extra space.
Since input only a word, %s is enough in scanf. So
Try with scanf("%s", b);

Answer 2

Thanks that fixed the problem