Python coding challenges on strings

Write code online and get instant feedback on your progress with automated tests

ASCII Value of Character

Beginner strings functions

Check All Characters Same

Beginner strings functions loops

Check Word Length Odd

Beginner functions strings conditionals

Convert String to Lowercase

Beginner strings

Convert String to Uppercase

Beginner strings

Count Characters in String

Beginner strings functions loops

Count Digits in String

Beginner strings loops conditionals

Count 'std' Occurrences

Beginner strings loops functions

Count Uppercase Characters

Beginner strings loops conditionals

Create Tuple from List and String

Beginner lists strings functions

Decimal to Binary Conversion

Beginner strings

Remove Odd Characters

Beginner strings loops

Remove Odd Index Characters

Beginner strings loops conditionals

Remove Whitespaces from String

Beginner strings regex strings

Replace Blank Spaces

Beginner strings functions

Replace Characters in String

Beginner strings functions

Replace Spaces with Encoding

Beginner strings

Split a string into a list

Beginner strings

Split String into Characters

Beginner strings

Reverse characters in a string

Beginner loops strings

String to List Split

Beginner strings lists functions

String to Tuple Conversion

Beginner strings

Toggle Case of String

Beginner strings

Tuple to String Conversion

Beginner strings

Add Spaces Between Capital Words

Intermediate strings regex

Apply Format to List

Intermediate strings lists

Check Balanced Parentheses

Intermediate strings

Check if String is Integer

Intermediate strings functions

Check String Start and End

Intermediate strings regex

Check String Starts with Vowel

Intermediate regex strings

Check Substring in List

Intermediate strings lists functions conditionals

Concatenate Tuple Elements

Intermediate strings loops

Convert Tuple String to Integer Tuple

Intermediate strings

Count Characters Matching Alphabet Position

Intermediate strings loops conditionals

Count Characters with Vowel Neighbors

Intermediate strings loops conditionals

Count Non-Empty Substrings

Intermediate strings math functions

Count Odd Binary Rotations

Intermediate strings loops

Validate an Email Address

Intermediate regex strings

Extract email addresses

Intermediate regex strings

Extract Last Character from Tuple

Intermediate strings lists

Extract Quoted Values

Intermediate strings regex strings

Extract Strings by Length

Intermediate lists strings

Extract Values Between Quotes

Intermediate strings regex

Find First Adverb Position

Intermediate regex strings

Find First Adverb

Intermediate strings regex strings

Find Long Words

Intermediate strings lists functions

Find Words Starting with 'P'

Intermediate strings regex lists functions

Find Words with Minimum Length

Intermediate strings regex strings

First Non-Repeated Character

Intermediate strings loops dictionaries

First Repeated Character

Intermediate strings loops conditionals

Join Integers into Single Integer

Intermediate strings lists

Longest Word Length

Intermediate strings lists functions loops

Match 'a' Followed by 'b's

Intermediate regex strings

Match String with 'a' to 'b'

Intermediate regex strings

Match String with 'a' and Three 'b's

Intermediate regex strings

Match Word Containing 'z'

Intermediate regex strings

Max Difference in Binary Substring

Intermediate strings

Find Maximum Run of Uppercase Characters

Intermediate strings loops conditionals

Minimum Binary Swaps

Intermediate strings

Minimum String Rotations

Intermediate strings loops

Move Numbers to End

Intermediate strings loops conditionals

Next Smallest Palindrome

Intermediate math strings

Validate a password

Intermediate regex strings

Extract phone numbers from a string

Intermediate regex strings

Remove Characters from String

Intermediate strings functions

Remove First and Last Occurrence of Character

Intermediate strings functions loops

Remove Leading Zeroes from IP

Intermediate strings regex functions

Remove Lowercase Substrings

Intermediate strings regex strings

Remove Parentheses from String

Intermediate strings regex strings

Remove Words by Length

Intermediate strings

Replace Spaces, Commas, and Dots

Intermediate strings regex functions

Replace Whitespace and Underscores

Intermediate strings

Reverse Strings in List

Intermediate strings lists

Reverse Vowels in String

Intermediate strings functions loops conditionals

Reverse Words in String

Intermediate strings functions

Snake to Camel Case

Intermediate strings functions

Sort Numeric Strings

Intermediate lists strings

Sum Length of Uppercase Names

Intermediate lists strings

Tuple to Integer Conversion

Intermediate strings

Find Unique Characters in a String

Intermediate sets strings

Count Word Frequencies in a File

Intermediate files strings

Longest Common Subsequence for Three Strings

Advanced strings

Longest Palindromic Subsequence

Advanced strings