Chapter-6

1. def replacstar(stri):
   strr=''
   for i in range(0,len(stri)):
      if stri[i]==stri[i-1]:
         strr=strr[:i+1]+'*'
      else:
         strr+=stri[i]
   return strr
2. def checkanagrams(s1, s2):  
      if(sorted(s1)== sorted(s2)): 
         print("The strings are anagrams.")  
      else: 
         print("The strings aren't anagrams.")
3. def numberofwords(s):
      count=1
      for i in s:
         if i==" ":
            count+=1
      print("number of words are :",count)
5. same as 3
6. a) 22
   b) ' Delhi'
   c) 'B-6, Lodhi road, Delhi'
   d) 'B-6, Lodhi road, Delhi'
   e) -1
   f) 'b-6, lODHI ROAD, dELHI'
   g) ['B-6', 'Lodhi road', 'Delhi']
   h) False
7. a) 2
   b) 15
   c) 27
   d) 'Good morning. have a good day!!'
   e) 'good morning. have a good day!!'
   f) 'GOOD MORNING. HAVE A GOOD DAY!!'
   g) 'gOOD mORNING. hAVE A gOOD dAY!!'
   h) False
   i) 'Sweet Morning. Have a Good Day!!'
   j) 'Good Morning. Have a Good Day!!'
   k) ['Good', 'Morning.', 'Have', 'a', 'Good', 'Day!!']
   l) ('Good Morning', '.', ' Have a Good Day!!')
   m) False
   n) True