Class: MyList

Inherits:
Object
  • Object
show all
Defined in:
lib/testing.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(a = []) ⇒ MyList

Returns a new instance of MyList.



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# File 'lib/testing.rb', line 7

def initialize(a = [])
  @list = a
end

Class Method Details

.set_correct ⇒ Object 



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# File 'lib/testing.rb', line 108

def self.set_correct
  alias_method :minimum, :minimum_correct
end

.set_fast ⇒ Object 



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# File 'lib/testing.rb', line 100

def self.set_fast
  alias_method :min_max, :min_max_fast
end

.set_slow ⇒ Object 



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# File 'lib/testing.rb', line 96

def self.set_slow
  alias_method :min_max, :min_max_slow
end

.set_wrong ⇒ Object 



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# File 'lib/testing.rb', line 104

def self.set_wrong
  alias_method :minimum, :minimum_wrong
end

Instance Method Details

#append(a) ⇒ Object 



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# File 'lib/testing.rb', line 15

def append(a)
  @list.append(a)
end

#contents ⇒ Object 



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# File 'lib/testing.rb', line 11

def contents
  @list
end

#find_first_position_of(a) ⇒ Object 



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# File 'lib/testing.rb', line 19

def find_first_position_of(a)
  i = 0
  position = nil
  while i < @list.length
    if @list[i] == a
      position = i
      break
    end
    i += 1
  end
  return position
end

#find_positions_of(a) ⇒ Object 



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# File 'lib/testing.rb', line 32

def find_positions_of(a)
  positions = []
  i = 0
  while i < @list.length
    if @list[i] == a
      positions.append i
    end
    i += 1
  end
  return positions
end

#maximum ⇒ Object 



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# File 'lib/testing.rb', line 44

def maximum
  i = 0
  max = @list[0]
  while i < @list.length
    if @list[i] > max
      max = @list[i]
    end
    i += 1
  end
  return max
end

#min_max_fast ⇒ Object 



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# File 'lib/testing.rb', line 84

def min_max_fast
  i = 0
  min = @list[0]
  max = @list[0]
  while i < @list.length
    min = @list[i] if @list[i] < min
    max = @list[i] if @list[i] > max
    i += 1
  end
  [min, max]
end

#min_max_slow ⇒ Object 



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# File 'lib/testing.rb', line 80

def min_max_slow
  [minimum, maximum]
end

#minimum_correct ⇒ Object 



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# File 'lib/testing.rb', line 68

def minimum_correct
  i = 0
  min = @list[0]
  while i < @list.length
    if @list[i] < min
      min = @list[i]
    end
    i += 1
  end
  return min
end

#minimum_wrong ⇒ Object 



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# File 'lib/testing.rb', line 56

def minimum_wrong
  i = 0
  min = @list[0]
  while i < @list.length
    if @list[i] > min
      min = @list[i]
    end
    i += 1
  end
  return min
end