midterm2 - hughxie

midterm2.py

'''
Dropping this here if anyone finds it useful.
PLS nobody talk about efficiency lol
'''

####Q1####
def both(list1, list2):
  list_3 = list(set(list1 + list2))
  list_4 = []
  print(list_3)
  for i in list_3:
      if (i in list1) and (i in list2):
          list_4.append(i)
  return list_4

####Q2####
def strcount(str1,str2):
  counter = str1.count(str2)
  return counter

####Q3####
def multiply(list1,valuex):
  arguments = dict()
  for i in list1:
      arguments[i] = arguments.get(i,0)+1
  newlist = []
  for x in arguments.keys():
      for i in range((int(arguments[x]))*valuex):
          newlist.append(x)
  return newlist

####Q4####
def grades():
  while True:
      sid = input('quit to exit program. Enter student number: ')
      if sid == 'quit':
          break
      sgrade = int(input('Enter grade for '+sid+' : '))
      if sid in s:
          s[sid].append(sgrade)
      else:
          s[sid] = []
          s[sid].append(sgrade)
  print(s)
  print(len(s.keys()))
  n = dict()
  for key,i in s.items():
      total = 0
      average = 0
      for x in i:
          total += x
      average = total/len(i)
      n[key] = []
      n[key].append(average)
  return n

####Q5####
def remove(str1,removestr):
    strlist = []
    strlist = str1.split(removestr)
    while True:
        str3 = ''
        for i in strlist:
            str3 += i
        if removestr in str3:
            strlist = str3.split(removestr)
        else:
            break
    return str3