aleksandr.zaytcev profile - python coding challenges

First

The Most Frequent

get

dict

max

count

list

6

First

Multiply (Intro)

3

First

First Word (simplified)

split

str

1

First

Split Pairs

itertools.zip_longest

zip_longest

itertools

join

list-comp

First

Beginning Zeros

count

split

int

str

1

First

Max Digit

max

list-comp

comprehension

int

str

First

Between Markers (simplified)

index

str

First

Easy Unpack

tuple

Second

Between Markers

find

None

inline-if

in

str

20

12

First

Popular Words

dict-comp

dict

lower

count

split

4

First

Morse Decoder

capitalize

inline-if

join

append

split

2

Second

Days Between

date

datetime.date

datetime

abs

6

First

Bigger Price

lambda

sorted

True

list

int

4

First

Second Index

index

None

count

inline-if

int

2

First

First Word

re.search

search

re

str

1

First

Date and Time Converter

datetime.strptime

strptime

f-string

datetime.datetime

datetime

First

Between Markers

find

inline-if

str

len

1

Second

Even the Last

inline-if

sum

len

2

First

Sun Angle

or

int

Third

Even the Last

inline-if

sum

1

First

Days Between

fabs

math.fabs

datetime.datetime

datetime

math

First

Pawn Brotherhood

chr

ord

or

in

int

First

Right to Left

replace

join

First

Three Words

isalpha

False

True

split

else

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Even the Last

range

len

for

if

2

First

Non-unique Elements

count

append

for

if

First

Verify Anagrams

collections.Counter

Counter

collections

isalpha

lower

2

First

Find Sequence

elif

False

and

True

range

First

Boolean Algebra

raise

not

or

elif

and

First

Brackets

values

keys

pop

not

in

First

Digits Multiplication

int

str

for

if

Second

Digits Multiplication

inline-if

int

str

for

First

Time Converter (24h to 12h)

datetime.strptime

strptime

datetime.datetime

datetime

replace

1

13

First

YAML. Simple Dict

update

filter

replace

isdigit

lambda

First

Conversion into CamelCase

title

join

if-comprehension

comprehension

1

First

Sum by Type

Tuple

typing.Tuple

type

typing

list

First

I Love Python!

join

First

Bird Language

while

in

elif

else

len

First

Cipher Map

join

if-comprehension

list-comp

range

comprehension

First

The Most Wanted Letter

findall

re.findall

keys

get

re

First

Absolute Sorting

abs

sorted

2

Second

Absolute Sorting

abs

sorted

Secret Message

isupper

for

if

2

Second

Secret Message

isupper

join

if-comprehension

comprehension

First

Flatten a List

map

replace

inline-if

split

list

2

1

First

How Deep

collections.abc.Iterable

isinstance

collections

Iterable

max

First

Time Converter (12h to 24h)

datetime.strptime

strptime

datetime.datetime

datetime

replace

1

First

Median

sort

inline-if

sum

len

2

First

Xs and Os Referee

continue

break

False

and

True

1

Index Power

len

if

First

3 Chefs

class

super

f-string

2

First

Multicolored Lamp

cycle

itertools.cycle

class

First

Every Person is Unique

class

object

datetime.strptime

strptime

f-string

First

Army Battles

class

property

super

decorator

add

First

The Warriors

class

property

decorator

while

and

First

Best Stock

itemgetter

operator.itemgetter

operator

items

max

3

First

Bigger Together

itertools.permutations

permutations

itertools

map

min

First

Caesar Cipher (encryptor)

inline-if

join

append

list

else

3

1

First1

Caesar Cipher (encryptor)

inline-if

join

append

list

else

1

First

Binary Count

bin

count

str

2

Second

Binary Count

bin

count

Fizz Buzz

elif

and

else

str

if

First

Long Repeat

extend

findall

re.findall

f-string

re

3

First

Morse Encoder

lower

join

comprehension

4

First

How to Find Friends

tuple

if-comprehension

in

False

True

5

3

First

Reverse Roman Numerals

startswith

upper

while

len

for

1

First

Find Quotes

findall

re.findall

r-string

re

First

Largest Rectangle in a Histogram

reversed

break

max

or

print

First

Feed Pigeons

max

while

1

First

Monkey Typing

lower

sum

in

list-comp

comprehension

First

Roman Numerals

while

else

if

First

The Most Numbers

min

max

inline-if

len

First

Swap Nodes

continue

while

and

len

if

First

Middle Characters

inline-if

len

First

Long Repeat Inside

findall

re.findall

r-string

re

max

1

5

First

Area of a Convex Polygon

abs

sum

range

comprehension

len

3

22

First

Cookies

dict

split

comprehension

1

First

Expand Intervals

from_iterable

itertools.from_iterable

chain

itertools.chain

itertools

1

First

The End of Other

endswith

any

if-comprehension

False

True

2

First

The Most Frequent Weekdays

date

datetime.date

datetime

enumerate

max

First

Open Labyrinth

None

or

and

len

if

First

Three Points Circle

eval

rstrip

math.sqrt

sqrt

format

1

First

Sum Consecutives

groupby

itertools.groupby

itertools

sum

list-comp

4

First

Robot Sort

f-string

join

append

range

list

House password RE

House Password

re.search

search

r-string

re

not

1

First

House Password

islower

any

isupper

isdigit

inline-if

2

First

Skew-symmetric Matrix

abs

False

and

True

range

Third

The Hamming Distance

bin

count

7

1

First

Node Disconnected Users

values

items

pop

set

sum

First

Restricted Sum

inline-if

list

len

3

1

First

The Hamming Distance

zfill

bin

replace

max

range

Second

The Hamming Distance

zfill

bin

replace

max

inline-if

First

Number Base

ValueError

except

try

int

if

Second

Stressful Subject

endswith

re.search

search

any

isupper

4

10

First

Permutation Index

Tuple

typing.Tuple

typing

range

int

First

Unlucky Days

date

datetime.date

datetime

range

for

1

First

Min and Max

min

None

inline-if

sorted

False

4

говнокод

Stressful Subject

endswith

upper

isupper

not

count

First

Probably Dice

math.factorial

factorial

as

float

format

First

Count Consecutive Summers

print

while

range

for

if

4

1