What Is Wrong With Code - I am beginner- Time Limit Exceed Problem

rubyonrails-talk
1

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puts “Hello World” def squareroot(a) u=a l=0 while (l<=u) m = l + (u-1)/2 if (m2) < a l = m + 1 elsif (m2) > a u = m-1 elsif m**2 == a return m else return l-1

end

end end x = squareroot(55) print x

Rahul

2

I guess it is never coming out of your while loop. Have a look at the Rails Guide on debugging to find out how to break into code using ruby_debug and see what is going on. Also you could try putting some write statements in the function to see what is happening.

Hint: It may not help but what happens if you try squareroot(55.0)? If that helps make sure you understand why (using debug or print statements).

Colin

3

# To change this template, choose Tools | Templates # and open the template in the editor.

puts "Hello World" def squareroot(a)    u=a    l=0    while (l<=u)      m = l + (u-1)/2

        puts "u = #{u}, l = #{l}, m = #{m}"

     if (m**2) < a

[snip rest of code]

Try adding in that extra line of code and I think you might understand your logic error.

HTH John