# OnBoarding

{{tag>codingame onboarding}}

# 접속주소

http://www.codingame.com/

# 게임방법

다가오는 적기들을 물리쳐야 합니다. 

적기들의 이름과 거리를 알려줍니다. 

STDOUT 으로 이름을 출력하면, 해당 적기를 향해 미사일을 발사합니다. 

모든 적기가 다가오기전에 모두 물리쳐야 합니다. 

<code>
5 threats approaching fast !
Threats within range:
HotDroid 60m
HotDroid 60m
HotDroid 60m
HotDroid 60m
Standard Output Stream:
HotDroid
</code>


## 사용할 언어를 선택합니다. 




## Perl은 선택하면 아래와 같은 기본 코드가 제공됩니다. 




`$enemy` 에는 적기의 이름이, `$dist`에는 적기와의 거리가 입력됩니다. 


```perl
select(STDOUT); $| = 1; # DO NOT REMOVE

# The code below will read all the game information for you.
# On each game turn, information will be available on the standard input, you will be sent:
# -> the total number of visible enemies
# -> for each enemy, its name and distance from you
# The system will wait for you to write an enemy name on the standard output.
# Once you have designated a target:
# -> the cannon will shoot
# -> the enemies will move
# -> new info will be available for you to read on the standard input.


# game loop
while (1) {
    chomp($count = <STDIN>); # The number of current enemy ships within range
    print STDERR "COUNT:".$count ."\n";
    @enemies = ();
   
    for(my $i=0; $i<$count; $i++) {
        # enemy: The name of this enemy
        # dist: The distance to your cannon of this enemy
        chomp($tokens=<STDIN>);
        ($enemy, $dist) = split(/ /,$tokens);
       
        print STDERR "name:".$enemy."\tdist:".$dist ."\n";
       
        my $e->{name}=$enemy;
        $e->{dist}=$dist;
        push @enemies,$e;

    }
 
    $min_e = $enemy;
    $min_d = $dist;
    print STDERR "enemies:".$#enemies . "\n";
   
    for my $href (@enemies) {
         print STDERR "x:". $href->{name} . "\n";
        
         $name = $href->{name};
         $dist = $href->{dist};
         if($min_d > $dist){
                $min_d = $dist;
                $min_e = $name;
            }
    }
   
    print $min_e."\n";
   
 # Write an action using print
    # To debug: print STDERR "Debug messages...\n";

    #print "HotDroid\n"; # The name of the most threatening enemy (HotDroid is just one example)
}
```