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Calen
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Ivan Pavlov
Last seen 2 years ago
Member for 3 years, 4 months, 15 days
Difficulty Normal
Missions (196) / Solutions (134)
Best solutions / Newest solutions
Initiation
First
All the Same
bool
count
or
inline-if
False
Home
First
Morse Decoder
capitalize
replace
join
list-comp
split
First
Pawn Brotherhood
add
set
and
append
int
Electronic Station
without re
Unix Match. Part 1
find
replace
bool
inline-if
while
15
First
Acceptable Password VI
isdigit
bool
set
or
inline-if
20
First
Acceptable Password II
isdigit
bool
False
True
str
angles check
Similar Triangles
Tuple
typing.Tuple
round
List
typing.List
First
Acceptable Password V
isdigit
bool
set
inline-if
in
First
Acceptable Password III
isdigit
bool
set
inline-if
False
1
First
Sort by Extension
rfind
List
typing.List
typing
lambda
First
Acceptable Password IV
isdigit
bool
set
inline-if
False
First
Surjection Strings
enumerate
bool
in
False
and
q
Words Order
tuple
index
bool
set
False
First
Digits Multiplication
functools.reduce
reduce
functools
lambda
if-comprehension
First
Brackets
dict
zip
IndexError
pop
except
First
Boolean Algebra
eval
f-string
First
Find Sequence
itertools.product
product
any
itertools
List
Scientific Expedition
recursion
Conversion from CamelCase
ascii_uppercase
string.ascii_uppercase
string
lower
in
split
Caps Lock
upper
abs
inline-if
split
str
.count()
Follow Instructions
count
recursion
Bird Language
set
in
and
range
len
First
Morse Clock
zfill
dict-comp
bin
replace
join
intersection
Common Words
set
sorted
join
split
str
First
Sum by Type
Tuple
typing.Tuple
type
functools.reduce
reduce
Counter
The Most Wanted Letter
filter
collections.Counter
Counter
collections
isalpha
I love Python!
I Love Python!
First
Call to Home
math.ceil
ceil
get
items
List
recursion
Conversion into CamelCase
upper
range
else
len
for
First
Cipher Map
numpy.rot90
rot90
numpy.array
array
numpy
First
Striped Words
isalpha
replace
lower
sum
if-comprehension
intersection
Pangram
set
lower
1
First
Letter Queue
collections.deque
deque
collections
List
typing.List
ascii_uppercase
Secret Message
ascii_uppercase
string.ascii_uppercase
string
in
str
O'Reilly
First
Cipher Crossword
update
functools.reduce
reduce
functools
dict
2
long one
Lightbulb Operating
datetime.min
datetime.max
typing.Union
Union
Optional
3
long one
Lightbulb More
datetime.min
datetime.max
typing.Union
Union
Optional
6
First
Median of Three
typing.Iterable
Iterable
typing
sorted
if-comprehension
8
comb
Lightbulb End Watching
Optional
typing.Optional
datetime.datetime
pass
datetime
14
First
Lightbulb Start Watching
Optional
typing.Optional
datetime.datetime
datetime
List
20
.pop()
Replace Last
pop
inline-if
list
len
.total_seconds()
Lightbulb Intro
datetime.datetime
datetime
List
typing.List
typing
First
Determine the Order
all
enumerate
replace
set
or
1
First
Compress List
groupby
itertools.groupby
itertools
typing.Iterable
Iterable
First
How Deep
isinstance
tuple
max
list-comp
comprehension
First
The Flat Dictionary
update
isinstance
f-string
dict
else
First
Reverse Every Ascending
range
len
for
if
First
Remove All After
index
typing.Iterable
Iterable
typing
inline-if
recursion
Flatten a List
isinstance
append
list
else
for
1
First
Frequency Sorting
lambda
count
print
sorted
1
iterator
Sort Except Zero
iter
next
enumerate
typing.Iterable
Iterable
First
Chunk
typing.Iterable
Iterable
typing
while
append
First
Time Converter (12h to 24h)
zfill
f-string
elif
and
split
First
Count Inversions
sum
list-comp
range
comprehension
len
First
Median
float
List
typing.List
typing
inline-if
First
Loading Cargo
from_iterable
itertools.from_iterable
chain
itertools.chain
combinations
Incinerator
First
Army Units
classmethod
class
super
decorator
f-string
18
First
The Warlords
class
staticmethod
property
super
type
First
The Weapons
class
StopIteration
staticmethod
raise
property
First
Straight Fight
class
StopIteration
staticmethod
raise
property
encapsulation
The Healers
class
staticmethod
property
super
decorator
First
Capital City
class
hasattr
super
not
if
encapsulation
Army Battles
class
staticmethod
super
decorator
enumerate
First
Dialogues
class
map
lambda
join
append
First
3 Chefs
class
f-string
_
The Warriors
class
super
not
inline-if
while
encapsulation
The Vampires
class
staticmethod
super
decorator
pass
encapsulation
The Defenders
class
staticmethod
super
decorator
enumerate
First
Building Base
class
f-string
Mine
First
Escape
abs
inline-if
while
elif
False
10
slooow
Bigger Together
itertools.permutations
permutations
itertools
List
typing.List
First
Domino Chain
continue
pop
replace
set
inline-if
First
Fast Train
chain
itertools.chain
all
itertools
pop
First
Determinant
numpy.linalg
linalg
numpy
round
First
The Einstein Problem-Lite
functools.reduce
reduce
functools
all
any
First
Moore Neighbourhood
pass
or
elif
range
len
First
Color Map
itertools.product
product
add
itertools
set
First
Can Balance
enumerate
typing.Iterable
Iterable
typing
range
First
Cut Sentence
split
else
len
for
if
str.maketrans
Caesar Cipher (decryptor)
isspace
translate
isalpha
or
join
First
Best Stock
dict
lambda
sorted
str
First
The Greatest Common Divisor
math.gcd
gcd
math
int
str.maketrans
Caesar Cipher (encryptor)
translate
str
len
First
Binary Count
bin
count
int
str
1
First
Fizz Buzz
strip
inline-if
int
str
Ice Base
First
Find Quotes
split
1
First
Count Chains
Tuple
typing.Tuple
List
typing.List
sort
First
Largest Rectangle in a Histogram
min
max
range
len
for
First
The Most Numbers
min
max
inline-if
First
Counting Tiles
math.ceil
ceil
math
inline-if
range
First
Feed Pigeons
max
while
True
range
for
First
How to Find Friends
add
in
list-comp
split
comprehension
groupby
Long Repeat
groupby
itertools.groupby
itertools
max
list
Alice In Wonderland
First
Multiplication Table
bin
or
sum
join
and
First
Middle Characters
len
recursion
Tree Walker
isinstance
values
dict
sum
elif
First
Swap Nodes
from_iterable
itertools.from_iterable
itertools.zip_longest
zip_longest
chain
First
Long Non Repeat
set
inline-if
while
range
len
First
The Shortest Knight's Path
itertools.product
product
itertools
ord
zip
First
IP Network: Route Summarization
zfill
f-string
bin
zip
set
First
Zigzag Array
reverse
List
typing.List
typing
append
First
Digits Doublets
zip
enumerate
pop
sum
while
First
When is Friday?
reversed
date
datetime.date
datetime
map
First
Transposed Matrix
List
typing.List
typing
list-comp
range
GitHub
Dijkstra, sort of
The Cheapest Flight
update
List
typing.List
min
typing
First
Simplify Unix Path
pop
set
not
inline-if
print
First
The Highest Building
range
len
for
if
First
Expand Intervals
typing.Iterable
Iterable
set
typing
range
1
First
The End of Other
combinations
itertools.combinations
match
re.match
itertools
First
Merge Intervals
pop
min
set
max
while
First
The Most Frequent Weekdays
calendar.day_name
day_name
calendar
groupby
itertools.groupby
Dropbox
First
Text Formatting
center
rjust
rstrip
f-string
enumerate
1
First
On the same path
any
or
list-comp
comprehension
else
First
URL Normalization
ascii_letters
string.ascii_letters
digits
string.digits
chr
First
Numbers Factory
max
inline-if
while
range
int
First
The Longest Palindromic
list-comp
range
comprehension
len
for
First
Three Points Circle
f-string
round
map
None
replace
First
Worth of Words
lambda
sum
sorted
list-comp
comprehension
First
Humpty Dumpty Form
math.log
log
math.asin
asin
math.pi
First
Friendly Number
zfill
f-string
round
abs
or
prime
The Best Number Ever
1
recursion
Speech Module
strip
elif
if
PyCon TW
First
Simple Areas
math.pi
pi
math
sum
elif
14
First
Sum Consecutives
groupby
itertools.groupby
itertools
sum
list-comp
First
Building Visibility
pass
elif
and
range
len
First
Calculate Islands
List
typing.List
typing
sorted
and
First
House Password
islower
isupper
isdigit
bool
elif
Storage
First
English to Braille Translator
zfill
bin
ord
map
isupper
First
Earth Distances
math.radians
radians
math.cos
cos
math.sin
First
The Rows of Cakes
frozenset
combinations
itertools.combinations
itertools
tuple
HubSpot
First
Next Birthday
Dict
typing.Dict
update
Tuple
typing.Tuple
17
1
First
Non Empty Lines
splitlines
replace
if-comprehension
list-comp
comprehension
Blizzard
First
Unlucky Days
date
datetime.date
datetime
sum
list-comp
1
First
Weekend Counter
datetime.timedelta
timedelta
datetime
while
in
Codeship
First
Unfair Dice
combinations_with_replacement
itertools.combinations_with_replacement
itertools.product
product
yield