Question

7.10 Strings

Implement the get_num_of_non_WS_characters() function. get_num_of_non_WS_characters() has a string parameter and returns the number of characters in the string, excluding all whitespace.

Implement the get_num_of_words() function. get_num_of_words() has a string parameter and returns the number of words in the string.

Answer 1

Algorithm-> (applied for any programming language)

get_num_of_non_WS_chararcter(s)

-> set count=0

-> for each character in s repeat:

->-> if s is a whitespace character then do nothing

->->else increase count

->return count

get_num_of_words(s):

->split the string into list of tokens separated by whitespace

-> return length of list

for splitting into tokens, use inbuilt function like

strtok() in c/c++

String tokenizer in java

split() in javascript and python

Example code in python->

def get_num_of_non_WS_characters(s): count=0 for i in s: if i.isspace(): pass else: count=count+1 return count get_num_of_non_W5_characters ("hello I \tam a\n boy") #Hello I am a boy 12 def get_num_of_words(s): lis = s.split() return len(lis) get_num_of_words('hello I \tam a\n boy') #Hell I am a boy

def get_num_of_words(s):
lis = s.split()
return len(lis)

---------------------------------------------------------

def get_num_of_non_WS_characters(s):
count=0
for i in s:
if i.isspace(): pass
else: count=count+1
return count

** for any other language if you need help, write in comments**