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Python: Create two strings from a given string

Python String: Exercise-68 with Solution

Write a Python program to create two strings from a given string. Create the first string using those character which occurs only once and create the second string which consists of multi-time occurring characters in the said string.

Sample Solution:-

Python Code:

from collections import Counter  
def generateStrings(input): 
     str_char_ctr = Counter(input) 
     part1 = [ key for (key,count) in str_char_ctr.items() if count==1] 
     part2 = [ key for (key,count) in str_char_ctr.items() if count>1] 
     part1.sort() 
     part2.sort()
     return part1,part2
input = "aabbcceffgh"
s1, s2 = generateStrings(input)
print(''.join(s1))   
print(''.join(s2))

Sample Output:

egh
abcf

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Python String: Create two strings from a given string.

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Flowchart: Create two strings from a given string

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Next: Write a Python program to find the longest common sub-string from two given strings.

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m