Question

I need to write a function that meets the following requirements in Python.

Function name: removeTriplicateLetters()

Number of parameters: 1 string parameter where all letters are lowercase

Return value: return the modified string

Goal: Iterate over the string and remove any triplicated letters (e.g. "byeee mmmy friiiennd" becomes "bye my friennd"). You may assume any immediate following same letters are a triplicate.

Answer 1

SOURCE CODE:

*Please follow the comments to better understand the code.

**Please look at the Screenshot below and use this code to copy-paste.

***The code in the below screenshot is neatly indented for better understanding.


def removeTriplicateLetters(string):
    output = ''
    # Iterate over the input string from 0th position to (length of string-3)
    i = 0
    while i < len(string) - 3:
        # Add that character to output
        output += string[i]
        # Check if triplicate
        if string[i] == string[i + 1] == string[i + 2]:
            i += 3
        else:
            i += 1
    # Check for last 2 letters
    if not string[-1]==string[-2]==string[-3]:
        output+=string[-3:]

    return output


# TEST
string = "byeee mmmy friiiennd"
output = removeTriplicateLetters(string)
print("The OUTPUT is: ", output)

-================