/in/Main.java:1: error: illegal character: '#'
#include <stdio.h>
^
/in/Main.java:1: error: class, interface, or enum expected
#include <stdio.h>
         ^
/in/Main.java:2: error: illegal character: '#'
#include <iostream>
^
/in/Main.java:4: error: class, interface, or enum expected
int n,len,e;
^
/in/Main.java:5: error: class, interface, or enum expected
int a[64];
^
/in/Main.java:6: error: class, interface, or enum expected
int main()
^
/in/Main.java:9: error: class, interface, or enum expected
    while(n)
    ^
/in/Main.java:12: error: class, interface, or enum expected
        n>>=1;
        ^
/in/Main.java:13: error: class, interface, or enum expected
    }
    ^
/in/Main.java:14: error: class, interface, or enum expected
    for(int i=len-1;i>=0;i--)
                    ^
/in/Main.java:14: error: class, interface, or enum expected
    for(int i=len-1;i>=0;i--)
                         ^
/in/Main.java:17: error: class, interface, or enum expected
    }
    ^
/in/Main.java:19: error: class, interface, or enum expected
}
^
13 errors