week10

Strings

Question 1 - SpOnGeBoB MeMe

Write a function that takes a string and returns it by converting it into a spongebob meme. Every letter with odd index should be lowercase and every letter with even index should be uppercase.

Input	Output
stop making sponge bob memes	StOp mAkInG SpOnGe bOb mEmEs
CMPE will be fun in the next few years	CmPe wIlL Be fUn iN ThE NeXt fEw yEaRs

Question 2 - Convert string to camel case

There are different naming conventions: lowercase lower_case_with_under_scores UPPERCASE CamelCase.

Write a function that converts dash/underscore delimited words into camel casing. Every word should start with a uppercase letter and continue with lowercase letters. (known as Upper Camel Case or Pascal Case.

Input	Output
to_camel_case	ToCamelCase
Hard_exam-pLe	HardExamPle
unnecessarily-LONG-Example	UnnecessarilyLongExample

Question 3 - Abbreviate

Write a function called abbreviation() that takes a string st.
If st has strictly more than 14 characters: returned string:

• has the same first and last two characters as st.
• the characters in the middle should be replaced by the number of characters being replaced. (if you are replacing 15 characters return value should look like ww15ww)
  

Else return st as is.

INPUT	OUTPUT
afyonkarahisarlarstiramadiklarimizdan	af33an
helo	helo

Question 4 - Stop gninnipS My sdroW!

Write a function that takes a string of one or more words, and returns the same string, but with all five or more letter words reversed.

Input	Output
This is another test	This is rehtona test
You know you’re in love when you can’t fall asleep because reality is finally better than your dreams.	You know er’uoy in love when you t’nac fall peelsa esuaceb ytilaer is yllanif retteb than your .smaerd
Challenges are what make life interesting and overcoming them is what makes life meaningful.	segnellahC are what make life gnitseretni and gnimocrevo them is what sekam life .lufgninaem

Question 5 - Requirements

Write a function which takes a password as parameter and return whether the password is valid or not. The password has the following requirements:

• The password must be at least 6 characters and at most 20 characters.

• It must contain at least one lowercase letter, one uppercase letter, and one number.

Input	Output
Covid19	True
123456	False

Question 6 - Length

Write a program to find shortest and largest word in a given string.

Input	Output
the house is a long way from here	a house
This room is exclusively for women	is exclusively

Question 7 - Alphabetical order

Write a program that accepts a comma separated sequence of words as input and prints the words in sorted form (alphanumerically).

Input	Output
red, white, black, red, green, black	black, black, green, red, red, white

Question 8 - Second Most Common

Write a program that prompts the user for a string. Then find and print out the second most repeated character (lowercase) in the string (not case-sensitive). Do not take whitespaces into consideration.

Hint : You can use replace() method of strings to get rid of whitespaces. Then you can use count() method to check if a character is in the string. Alternatively, you can use a dictionary to store the occurrences of each character.

INPUT	OUTPUT
" Hey there partner! "	"r"
"CaN you CAn a CAN as a canner CaN CAn a CAN?"	"n"
" LEsSer leather weaTheREd weTTer weathEr BettEr"	"t"

Question 9 - Not poor

Write a function to find the first appearance of the substring 'not' and 'poor' from a given string, if 'not' follows the 'poor', replace the whole 'not'...'poor' substring with **'good'. ** and return the resulting string.

Input	Output
The lyrics is not that poor!	The lyrics is good!
The lyrics is poor!	The lyrics is poor!

Question 10 - Find and replace

Write a function that takes 3 strings input, a and b and replaces all the instances of a in input with b.

input	a	b	Output
This is another test	"is"	"is not"	This not is not another test
I mean, it went badly last time but surely it will go much better this time.	"it"	"filling zepplins with hydrogen"	I mean, filling zepplins with hydrogen went badly last time but surely filling zepplins with hydrogen will go much better this time.
Test test TeSt te st TEst teSt crest TEA	"st TE"	" test "	Test test TeSt te testst teSt cretestA

Question 11 - Reading Backwards

You are a very skilled artist who can read sentences backwards. Jury will test you by giving you four strings. i value will be given by the jury.

• Read the first one changing the order of the words in backwards.
• Read the second one by changing the letters of the words as well.
• Read the third one backwards but starting from the i^th word (according to the given order) without changing the words.
• Read the last one, again starting from the ith word but changing the words as well.

INPUT	OUTPUT
But then I took an arrow in the knee i = 6	knee the in arrow an took I then But eenk eht ni worra na koot I neht tuB in arrow an took I then But ni worra na koot I neht tuB
I want to play a game i = 12	game a play to want I emag a yalp ot tnaw I play to want I yalp ot tnaw I
It can't be for nothing i = 4	nothing for be can't It gnihton rof eb t'nac tI be can't It eb t'nac tI