Lecture Notes on 14 Oct 2009

# This function returns the sum of the elements in a 1-D list

def sumList (a):
  sum = 0
  for item in a:
    sum = sum + item
  return sum

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


# This function returns the sum of the elements in a 2-D list

def sumList (a):
  sum = 0
  for row in a:
    for col in row:
      sum = sum + col
  return sum

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


# This function returns the maximum of the elements in a 1-D list

def getMax (a):
  max = a[0]
  for i in range (1, len(a)):
    if (a[i] > max):
      max = a[i]
  return max


# This function returns the maximum of the elements in a 2-D list

def getMax (a):
  max = a[0][0]
  for i in range (len(a)):
    for j in range (len(a[i])):
      if (a[i][j] > max):
        max = a[i][j]
  return max