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6 kyu
Count the smiley faces!
96,320St3f4n
Regular Expressions
Fundamentals
6 kyu
The Supermarket Queue
51,377mattlub
Arrays
Fundamentals
6 kyu
Detect Pangram
182,339anindyabd
Strings
Data Structures
Fundamentals
6 kyu
Counting Duplicates
229,923kgashok
Strings
Fundamentals
6 kyu
ATM money counter
677ost-k
Regular Expressions
Mathematics
Fundamentals
6 kyu
Write Number in Expanded Form
80,071Belax8
Strings
Mathematics
Algorithms
Fundamentals
6 kyu
Equal Sides Of An Array
126,307Shivo
Algorithms
Arrays
Fundamentals
6 kyu
Title Case
37,260user527539
Strings
Fundamentals
6 kyu
Find the unique number
144,971isqua
Fundamentals
Algorithms
Arrays
Performance
6 kyu
Highest Scoring Word
99,676PG1
Fundamentals
Strings
Arrays
6 kyu
Give me a Diamond
36,475jayeshcp
Strings
ASCII Art
Fundamentals
6 kyu
Consecutive strings
79,277g964
Fundamentals
6 kyu
Array.diff
283,949marcinbunsch
Arrays
Fundamentals
Algorithms
7 kyu
Flatten and sort an array
28,330lilsweetcaligula
Arrays
Sorting
Fundamentals
7 kyu
Maximum Length Difference
28,800g964
Fundamentals
7 kyu
Summing a number's digits
38,198mweiss
Fundamentals
8 kyu
String cleaning
25,539mkelty
Regular Expressions
Fundamentals
Strings
7 kyu
The Coupon Code
30,532yaphi1
Date Time
Strings
Fundamentals
6 kyu
Tortoise racing
31,802g964
Fundamentals
Mathematics
Algorithms
8 kyu
Convert to Binary
34,449JapaX
Mathematics
Algorithms
Fundamentals
7 kyu
Power of two
24,824yuriy.tsemashko
Mathematics
Algorithms
Fundamentals
6 kyu
The Vowel Code
20,540yaphi1
Arrays
Strings
Regular Expressions
Fundamentals
8 kyu
Power
11,606hokon86
Restricted
8 kyu
Basic subclasses - Adam and Eve
18,333hansrusten
Fundamentals
Object-oriented Programming
7 kyu
Filter the number
18,277matt c
Strings
Fundamentals
7 kyu
Switcheroo
17,348PG1
Fundamentals
Strings
8 kyu
Color Ghost
18,887ogryzek
Object-oriented Programming
Fundamentals
7 kyu
Alphabet war
18,222dcieslak
Fundamentals
Strings
7 kyu
Binary Addition
177,731garrettguy457
Binary
Fundamentals
6 kyu
If you can read this...
12,122henryhamon
Fundamentals
7 kyu
Evens and Odds
6,799ocirion
Fundamentals
Binary
8 kyu
Finish Guess the Number Game
9,655brunolm
Fundamentals
Object-oriented Programming
4 kyu
Human readable duration format
82,448davazp
Strings
Date Time
Algorithms
6 kyu
Simple Encryption #1 - Alternating Split
28,497user5036852
Cryptography
Algorithms
Strings
Arrays
Fundamentals