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6 kyu
Count the smiley faces!
97,714St3f4n
Regular Expressions
Fundamentals
6 kyu
The Supermarket Queue
52,321mattlub
Arrays
Fundamentals
6 kyu
Detect Pangram
185,640anindyabd
Strings
Data Structures
Fundamentals
6 kyu
Counting Duplicates
233,385kgashok
Strings
Fundamentals
6 kyu
ATM money counter
683ost-k
Regular Expressions
Mathematics
Fundamentals
6 kyu
Write Number in Expanded Form
81,252Belax8
Strings
Mathematics
Algorithms
Fundamentals
6 kyu
Equal Sides Of An Array
128,029Shivo
Algorithms
Arrays
Fundamentals
6 kyu
Title Case
37,693user527539
Strings
Fundamentals
6 kyu
Find the unique number
147,107isqua
Fundamentals
Algorithms
Arrays
Performance
6 kyu
Highest Scoring Word
101,290PG1
Fundamentals
Strings
Arrays
6 kyu
Give me a Diamond
36,978jayeshcp
Strings
ASCII Art
Fundamentals
6 kyu
Consecutive strings
80,237g964
Fundamentals
6 kyu
Array.diff
288,385marcinbunsch
Arrays
Fundamentals
Algorithms
7 kyu
Flatten and sort an array
28,751lilsweetcaligula
Arrays
Sorting
Fundamentals
7 kyu
Maximum Length Difference
29,136g964
Fundamentals
7 kyu
Summing a number's digits
39,035mweiss
Fundamentals
8 kyu
String cleaning
26,078mkelty
Regular Expressions
Fundamentals
Strings
7 kyu
The Coupon Code
30,833yaphi1
Date Time
Strings
Fundamentals
6 kyu
Tortoise racing
32,030g964
Fundamentals
Mathematics
Algorithms
8 kyu
Convert to Binary
34,794JapaX
Mathematics
Algorithms
Fundamentals
7 kyu
Power of two
25,208yuriy.tsemashko
Mathematics
Algorithms
Fundamentals
6 kyu
The Vowel Code
20,836yaphi1
Arrays
Strings
Regular Expressions
Fundamentals
8 kyu
Power
11,755hokon86
Restricted
8 kyu
Basic subclasses - Adam and Eve
18,583hansrusten
Fundamentals
Object-oriented Programming
7 kyu
Filter the number
18,655matt c
Strings
Fundamentals
7 kyu
Switcheroo
17,579PG1
Fundamentals
Strings
8 kyu
Color Ghost
19,323ogryzek
Object-oriented Programming
Fundamentals
7 kyu
Alphabet war
18,520dcieslak
Fundamentals
Strings
7 kyu
Binary Addition
180,805garrettguy457
Binary
Fundamentals
6 kyu
If you can read this...
12,199henryhamon
Fundamentals
7 kyu
Evens and Odds
6,991ocirion
Fundamentals
Binary
8 kyu
Finish Guess the Number Game
9,916brunolm
Fundamentals
Object-oriented Programming
4 kyu
Human readable duration format
83,577davazp
Strings
Date Time
Algorithms
6 kyu
Simple Encryption #1 - Alternating Split
28,921user5036852
Cryptography
Algorithms
Strings
Arrays
Fundamentals