接收无法分配内存错误

Question

我正在做一个CodeEval问题，要求查找一个数字可以变成双平方的方式。这里的链接的问题：

https://www.codeeval.com/open_challenges/33

当我在命令行中运行它，它很快就输出了正确的解决方案，但是，当我提出的计划，我不断收到一个错误CodeEval，内容如下：

“致命：分配内存失败”。

我是编程新手，不确定为什么会出现这种情况，有人可以向我解释这一点。

这里是我的代码：

def double_square(x) 
#Create array for storing double squares 
arr = [] 
#Make x an integer 
x = x.to_i 
#Solve for case 0 
if x == 0 then arr << 0 end 
sqrt_x = Math.sqrt(x) 
sqrt_x_as_int = Math.sqrt(x).to_i 
#Check if x is a perfect square, if it is add it to array with '0' 
if sqrt_x/sqrt_x_as_int == 1.0 
    arr << [0,x] 
end 
#Find squares of all numbers less than the square root of x 
squares = (1..sqrt_x_as_int).map {|num| num**2} 
#Create array containing the combinations of squares & if array contains x, delete it 
combos = squares.combination(2).to_a.delete_if {|combo| combo.any? {|num| num == x}} 
#Find the sum of each array and select the arrays whose sums are equal to x 
sums = combos.map do |combo| 
    sum = combo.inject(:+) 
    if sum == x 
     arr << combo 
    end 
end 
#Return the amount of double squares for n 
puts arr.count 
end 

lines = File.readlines(ARGV[0]).map {|line| line.strip} 
lines[0].to_i.times {|i| double_square(lines[i+1])} 

Answer 1

我想这是与CodeEval的服务器或沙箱环境问题。