SEKIYA Takayuki

Jan 08, 2013

The codes used for these quizzes consist of the combination of loops and conditionals.

Quiz	Code	Description
1-2	a1	conditionals with comparison ">"
3-4	a2	conditionals with comparison "=="
5-6	a3	loop using no control variables (see Figures 1 and 3)
7-8	a4	loop using control variables
9-10	a5	conditional with comparison ">" using no control variables (see Figure 3)
11-12	a6	conditional with comparison "==" using no control variables
13-14	a7	conditional with comparison ">" using control variables (see Figure 3)
15-16	a8	conditional with comparison "==" using control variables
17-18	a9	loop using no control variables in conditional with comparison ">"
19-20	a10	loop using no control variables in conditional with comparison "=="

def a1(a)
  ans = 0
  if a > 3
    ans = ans + a
  else
    ans = ans - a
  end
  p ans
end

def a2(a)
  ans = 0
  if a == 3
    ans = ans + a
  else
    ans = ans - a
  end
  p ans
end

def a3(a)
  ans = 0
  for i in 1..a
    ans = ans + a
  end
  p ans
end

def a4(a)
  ans = 0
  for i in 1..a
    ans = ans + i
  end
  p ans
end

def a5(a)
  ans = 0
  for i in 1..a
    if a > 3
      ans = ans + a
    else
      ans = ans - a
    end
  end
  p ans
end

def a6(a)
  ans = 0
  for i in 1..a
    if a == 3
      ans = ans + a
    else
      ans = ans - a
    end
  end
  p ans 
end

def a7(a)
  ans = 0
  for i in 1..a
    if i > 3
      ans = ans + i
    else
      ans = ans - i
    end
  end
  p ans
end

def a8(a)
  ans = 0
  for i in 1..a
    if i == 3
      ans = ans + i
    else
      ans = ans - i
    end
  end
  p ans
end

def a9(a)
  ans = 0
  if a > 3
    for i in 1..a
      ans = ans + a
    end
  else
    ans = ans - a
  end
  p ans 
end

def a10(a)
  ans = 0
  if a == 3
    ans = ans + a
  else
    for i in 1..a
      ans = ans - a
    end
  end
  p ans 
end

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