• Charles (25/25) Aug 31 2014 Hi everyone
• Charles (2/5) Aug 31 2014 Figured it out. The issue was the \n character at the end of the
• bearophile (6/14) Sep 01 2014 I suggest to add a blank line after the import, to move the

"Charles" <csmith.ku2013 gmail.com> writes:

Hi everyone

So I've been working on the problems over at HackerRank.com
trying to gain some familiarity with D. I use a Windows computer
with VisualD, but the server used to test the program uses Ubuntu
(I can't tell which compiler they're actually using).

The problem I'm stuck on now is the Utopian Tree
(https://www.hackerrank.com/challenges/utopian-tree).

My solution I came up with (and works locally) is:

import std.stdio;
void main() {
      int height=1,t=1,oldN=0,n;
      readf(" %d\n", &t);
      foreach (i;0 .. t) {
          readf(" %d\n", &n);
          foreach (j; oldN .. n)
              height = (j % 2) ? height + 1 : height * 2;
          writeln(height);
          oldN = n;
      }
}

For the test cases this only produces the first output
(correctly), but then hits a compiler error with format.d before
the next one. Any ideas what might be going on?

Thanks,
Charles

"Charles" <csmith.ku2013 gmail.com> writes:

 For the test cases this only produces the first output
 (correctly), but then hits a compiler error with format.d before
 the next one. Any ideas what might be going on?


Figured it out. The issue was the \n character at the end of the 
readf statements.

"bearophile" <bearophileHUGS lycos.com> writes:

Charles:

 My solution I came up with (and works locally) is:

 import std.stdio;
 void main() {
      int height=1,t=1,oldN=0,n;
      readf(" %d\n", &t);
      foreach (i;0 .. t) {
          readf(" %d\n", &n);
          foreach (j; oldN .. n)

I suggest to add a blank line after the import, to move the 
import inside the main, to add a space after the commas, and to 
add an immutable to foreach variable.

Bye,
bearophile