Lecture Notes on 26 October 2009

# This function makes an exact copy of a 1-D list

def copyList (a):
  b = []
  for item in a:
    b.append (item)
  return b

  # Alternative solution
  b = []
  for i in range (len(a)):
    b.append(a[i])
  return b


# This function makes an exact copy of a 2-D list

def copyList (a):
  b = []
  for row in a:
    temp = []
    for col in row:
      temp.append (col)
    b.append (temp)
  return b

  # Alternative solution
  b = []
  for i in range (len(a)):
    temp = []
    for j in range (a[i])):
      temp.append(a[i][j])
    b.append (temp)
  return b


# This function sums the rows of a 2-D list and prints them out

def sumRow (a):
  for row in a:
    sum = 0
    for item in row:
      sum = sum + item
    print sum

  # Alternative solution
  for i in range (len(a)):
    sum = 0
    for j in range (len(a[i])):
      sum = sum + a[i][j]
    print sum