bsquare profile - python coding challenges

Quick and easy

All the Same

set

len

4

7

3-chars solution :)

Multiply (Intro)

mul

operator.mul

operator

8

12

3

Flatten generator

Flatten a List

collections.abc.Iterable

yield

isinstance

collections

Iterable

9

7

1

zip_longest trick

Split Pairs

itertools.zip_longest

zip_longest

f-string

itertools

list-comp

14

2

Complete clear and documented solution with numpy

Pawn Brotherhood

numpy.bool

numpy.argwhere

argwhere

numpy.array_equal

array_equal

1

Clean solution with dictionary, groupby, sorted with key

Sort Array by Element Frequency

groupby

itertools.groupby

add

itertools

index

1

Clean and easy solution with regex

Time Converter (12h to 24h)

match

re.match

f-string

r-string

re

3

A safe-guard is often nice

Between Markers

escape

re.escape

re.sub

sub

r-string

Solution with List comprehension

Non-unique Elements

count

if-comprehension

list-comp

list

comprehension

1

2

Quick solution (map and f-string)

Time Converter (24h to 12h)

f-string

map

split

int

1

26

2

Nice numpy solution checking properly rows, columns, diagonal and anti-diagonal

Xs and Os Referee

fliplr

numpy.fliplr

numpy.where

where

numpy.array

1

11

2

Clean and clear

Sun Angle

map

or

inline-if

split

int

1

2

Clear and documented solution with regular expressions with group replacing

Bird Language

re.sub

sub

r-string

re

10

Walrus and Negative floor division tricks

Split List

list

len

2

Simplified stack solution

Brackets

values

pop

None

in

elif

8

Nice and documented solution with numpy

Can You Pass?

numpy.array_equal

array_equal

numpy.array

array

numpy

3

1

2

Clear solution with itertools product and generator

Mathematically Lucky Tickets

operator.truediv

truediv

operator.sub

operator.add

ZeroDivisionError

Proper solution with numpy, generator and slicing

Find Sequence

ndarray

numpy.ndarray

numpy.unique

unique

fliplr

Regular expression, translate, translation map

Unix Match. Part 1

translate

re.compile

compile

re

None

2-lines solution with reduce

Digits Multiplication

functools.reduce

reduce

functools

replace

lambda

One-line solution with lambda and regex

Secret Message

re.sub

sub

r-string

re

lambda

9

8

2-lines solution, with walrus and lambda tricks

YAML. More Types

isnumeric

strip

dict-comp

None

replace

Clear solution with numpy

Cipher Map

numpy.rot90

rot90

numpy.array

array

numpy

One-line solution, with walrus trick

YAML. Simple Dict

isnumeric

strip

dict-comp

inline-if

if-comprehension

Clear solution with defaultdict, sum and floor div trick

Call to Home

collections.defaultdict

defaultdict

values

collections

min

1

One-line solution (sorted with key)

Absolute Sorting

abs

sorted

1

One line solution

Index Power

inline-if

len

17

1

Just using several ways to re-order list

Reverse Every Ascending

reverse

reversed

extend

is

None

Simple EAFP solution

Sort Except Zero

insert

ValueError

pass

typing.Iterable

Iterable

Clean OOP Solution with full inheritance

The Warlords

class

math.floor

floor

property

super

1

14

21

Final optimized OOP Solution (iteratively improved among all challenges of the saga)

The Warlords

class

clear

staticmethod

collections.deque

deque

3

8

1

Clear OOP Solution (ready for next challenges of the saga)

The Vampires

class

staticmethod

collections.deque

deque

property

4

10

5

Overkill solution with some builtin functions (starmap, zip ...)

Microwave Ovens

dataclasses.field

field

dataclass

dataclasses

dataclasses.dataclass

7

1

Easy and clearly documented solution

Building Base

class

f-string

20

Full clean OOP Solution, and f-string with thousand separator, and datetime

Every Person is Unique

class

datetime.strptime

strptime

f-string

datetime.datetime

5

Clear OOP Solution (ready for next challenges of the saga)

The Defenders

class

staticmethod

collections.deque

deque

property

3

1

Complete solution without obfuscation and some overkill safe-guards :)

Microwave Ovens

dataclasses.field

field

dataclass

dataclasses

dataclasses.dataclass

1

Clear OOP Solution (ready for next challenges of the saga)

The Weapons

class

staticmethod

collections.deque

deque

property

1

Clear OOP Solution (ready for next challenges of the saga)

Straight Fight

class

staticmethod

collections.deque

deque

property

1

Clear OOP Solution (ready for next challenges of the saga)

Army Battles

class

staticmethod

collections.deque

deque

property

3

1

Full OOP with Friends AND Connection classes, with __hash__, __eq__, and __str__ methods.

Friends

hash

class

property

set-comp

decorator

3

1

Clear OOP Solution (ready for next challenges of the saga)

The Healers

class

staticmethod

collections.deque

deque

property

1

Clear OOP Solution (ready for next challenges of the saga)

The Lancers

class

staticmethod

collections.deque

deque

property

1

Simple test on new checkio validation tests

The Warlords

class

StopIteration

clear

staticmethod

collections.deque

1

Clear OOP Solution (ready for next challenges of the saga)

The Warriors

class

property

super

decorator

f-string

9

Simple test on new checkio validation tests

The Warriors

class

property

super

decorator

f-string

1

One line solution

Caesar Cipher (encryptor)

string.index

ascii_lowercase

string.ascii_lowercase

as

string

6

Clear one-line solution

Achilles and the Tortoise

4

2

One-line solution (sorted with key)

Best Stock

items

lambda

sorted

Clear and quick

Long Repeat

groupby

itertools.groupby

itertools

max

list-comp

5

8

2

Quick one-line solution

Morse Encoder

get

lower

join

comprehension

7

3

1

Elegant OOP Solution (ready for the 3 Sendgrid Challenges)

City's Happiness

class

frozenset

super

set-comp

f-string

9

6

4

Elegant OOP Solution (ready for the 3 Sendgrid Challenges)

Node Disconnected Users

class

frozenset

super

set-comp

f-string

4

1

Elegant OOP Solution (ready for the 3 Sendgrid Challenges)

New Cities

class

frozenset

super

set-comp

f-string

3

Full OOP Solution

How to Find Friends

hash

class

property

set-comp

decorator

Why do it simple when we can do it more complex?

Easy Unpack

tuple

list-comp

comprehension

8

7

2

2-lines solution with map and f-string

Date and Time Converter

calendar.month_name

month_name

calendar

findall

re.findall

10

2

Very Clear (but not the more efficient)

Long Non Repeat

break

max

in

list-comp

range

5

1

Clear solution with defaultdict

The Fastest Horse

collections.defaultdict

defaultdict

items

collections

index

2

Simple and quick with regexp

Correct Sentence

re.sub

sub

r-string

upper

re

5

1

4 lines solution using Dictionary Comprehension, and multiple sorted

The Most Wanted Letter

itemgetter

operator.itemgetter

operator

filter

dict-comp

3

One-line solution (sorted with key)

Bigger Price

lambda

sorted

2

1

One-line solution with datetime (no format)

Days Between

datetime.datetime

datetime

abs

1

Use 'create interval' solution on all numbers.

Merge Intervals

extend

zip

set

sorted

if-comprehension

3

4

1

Clean solution using datetime and timedelta with *args, **kwargs and map tricks

Broken Clock

datetime.timedelta

timedelta

datetime.datetime

datetime

map

4

2

7

Solution playing with sets

Power Supply

difference

union

intersection

set-comp

set

7

Simple 2-lines solution with numpy

Area of a Convex Polygon

hstack

numpy.hstack

numpy.roll

roll

numpy

15

Nice clear solution

Long Repeat Inside

in

range

len

for

if

1

One line solution with itertools

Expand Intervals

chain

itertools.chain

itertools

typing.Iterable

Iterable

Mostly built-in functions

Text Formatting

center

textwrap.wrap

wrap

textwrap

ljust

8

Clear one-line solution

Popular Words

findall

re.findall

dict-comp

r-string

re

10

1

One-line solution with regular expression

Popular Words

findall

re.findall

dict-comp

r-string

re

1

Clear and documented solution with operator and f-string

Friendly Number

floordiv

operator.floordiv

operator.truediv

truediv

operator

7

Clear and documented solution.

Numbers Factory

map

not

inline-if

sorted

join

8

1

One-line solution with lambda and regex

Three Words

re.search

search

r-string

re

None

2

Nice clear solution

The Longest Palindromic

range

len

for

if

5

1

Exponential

The Best Number Ever

2

1

Nice solution with walrus and try/except

Simple Hashlib

bytes

AttributeError

hashlib.new

new

hashlib

Clean and documented solution with numpy

Calculate Islands

numpy.argwhere

argwhere

numpy.array_equal

array_equal

numpy.array

Brute-force Solution with combinations

Double Substring

combinations

itertools.combinations

dict-comp

keys

any

Quick one-line solution

Skew-symmetric Matrix

numpy.array_equal

array_equal

numpy.array

array

numpy

3

Simple solution

Stressful Subject

endswith

strip

any

zip

isupper

16

15

4

Regexp is your friend

Between Markers (simplified)

escape

re.escape

re.sub

sub

r-string

Quick and easy

Even the Last

inline-if

sum

12

2

Simple with regexp

First Word (simplified)

match

re.match

r-string

re

1

Clean and educational solution

The Angles of a Triangle

raise

math.degrees

degrees

math.acos

acos

Solution with Generator

Completely Empty

collections.abc.Iterable

yield

isinstance

is

collections

5

Nice and documented solution with numpy

Wall Keeper

numpy.put

put

numpy.bool

numpy.argwhere

argwhere

2

1

3

3-characters quick and easy solution

Funny Addition

sum

4

1

Quick solution

The Ship Teams

items

or

sorted

if-comprehension

comprehension

6

3

Funny solution with matrix and rotate

The Stone Wall

numpy.rot90

rot90

numpy.array

array

numpy

18

Clean solution with numpy and linalg.norm

Compass, Map and Spyglass

numpy.argwhere

argwhere

numpy.linalg

linalg

numpy.array

19

Amusing way to solve this one

Ground for the House

rindex

continue

enumerate

index

min