lxf42 profile - python coding challenges

with a dict

Nearest Value

dict-comp

min

abs

set

if-comprehension

3

9

First

All the Same

Any

typing.Any

List

typing.List

bool

15

5

First

End Zeros

re.search

search

r-string

re

int

1

sum & isdigit

Count Digits

isdigit

sum

comprehension

int

str

8

First

All Upper I

upper

bool

str

6

1

First

Max Digit

max

comprehension

int

str

6

1

First

Between Markers (simplified)

index

str

1

2

First

Replace First

typing.Iterable

Iterable

typing

list

1

count with loop

Popular Words

dict-comp

dict

lower

in

split

12

5

1

format with datetime

Date and Time Converter

datetime.datetime

datetime

replace

str

if

17

13

1

summing bools

Pawn Brotherhood

chr

ord

set

or

sum

6

1

yields

Duplicate Zeros

yield

typing.Iterable

Iterable

not

typing

2

Just iterating over the list

Changing direction

pass

max

elif

and

list

1

sets

Missing Number

pop

min

set

sorted

range

First

First Word

re.compile

compile

findall

re.findall

r-string

1

TRYing

Between Markers

index

except

try

str

len

3

First

Bigger Price

lambda

sorted

True

list

int

4

First

Three Words

isdigit

bool

join

in

list-comp

build up dict with valid entries

Surjection Strings

in

False

True

range

else

7

3

calculate sides lengths and scale 2nd triangle

Similar Triangles

numpy.sqrt

numpy.array

array

numpy

Tuple

9

3

First

Can You Pass?

pass

add

IndexError

pop

except

5

1

super easy with sympy

Inside Block

Point2D

sympy.Point2D

sympy.Polygon

Polygon

sympy

sorting with regex

Sort by Extension

match

re.match

r-string

List

typing.List

one more len

Acceptable Password IV

digits

string.digits

intersection

string

set

3

sets

Acceptable Password VI

digits

string.digits

intersection

string

set

3

1

sets

Acceptable Password III

digits

string.digits

intersection

string

set

3

1

removing

Verify Anagrams

ValueError

remove

replace

except

try

sets

Acceptable Password II

digits

string.digits

intersection

string

set

check alphabet chars with set

All Upper II

ascii_uppercase

string.ascii_uppercase

intersection

string

upper

1

set and sorted

Ascending List

typing.Iterable

Iterable

bool

set

typing

1

good task for re

Brackets

re.subn

subn

re.sub

sub

r-string

3

2

no password

Acceptable Password V

digits

string.digits

intersection

string

set

reducing digits

Digits Multiplication

functools.reduce

reduce

functools

lambda

if-comprehension

numpy

Follow Instructions

numpy.array

array

numpy

Tuple

typing.Tuple

10

search in lines, then in columns

The Hidden Word

splitlines

IndexError

index

None

replace

12

3

1

checking different possibilities

YAML. More Types

startswith

strip

None

replace

isdigit

19

2

could it be max?

Latest ISO datetime

max

defaultdict

Convert and Aggregate

collections.defaultdict

defaultdict

filter

dict

items

with exception handling

Goes Right After

index

bool

except

try

False

6

1

re

Conversion from CamelCase

re.sub

sub

r-string

re

lower

6

1

set intersection

Pangram

intersection

ascii_lowercase

string.ascii_lowercase

string

set

9

1

split and isdigit

YAML. Simple Dict

isdigit

split

int

for

if

re

Conversion into CamelCase

re.sub

sub

r-string

upper

re

5

build dict, then calculate total

Call to Home

math.ceil

ceil

values

get

List

2

morse or binary?

Morse Clock

translate

re.sub

sub

r-string

format

char by char

Caps Lock

upper

not

elif

False

else

isinstance

Sum by Type

Tuple

typing.Tuple

isinstance

typing

sum

1, 2 or 3

Bird Language

ascii_lowercase

string.ascii_lowercase

string

while

if-comprehension

5

simple

Time Converter (24h to 12h)

f-string

elif

split

else

int

split and match

Letter Queue

case

match-case

List

typing.List

pop

string, split and enumerate

Striped Words

string.whitespace

whitespace

punctuation

string.punctuation

re.split

sets

Common Words

intersection

set

sorted

join

split

using string

Secret Message

ascii_uppercase

string.ascii_uppercase

string

join

if-comprehension

Counter

The Most Wanted Letter

ascii_lowercase

string.ascii_lowercase

filter

collections.Counter

Counter

easy with numpy

Median of Three

numpy.median

median

numpy

as

typing.Iterable

2

6

int str

Integer Palindrome

lambda

int

str

4

6

2

Easy

Replace Last

list

4

3

summed

Lightbulb Intro

datetime.datetime

datetime

List

typing.List

typing

11

1

with generator expression

Chunk

typing.Iterable

Iterable

typing

range

list

summing bools

Majority

bool

sum

list

len

1

let's evaluate some string

Flatten a List

translate

eval

str

4

Recursive

How Deep

type

max

list-comp

comprehension

int

5

1

zip_longest

Lightbulb End Watching

itertools.zip_longest

zip_longest

Optional

typing.Optional

datetime.datetime

2

sorted

Frequency Sorting

List

typing.List

typing

lambda

count

only 8 possibilities

Xs and Os Referee

copy

extend

List

typing.List

typing

5

heapq

The Final Stone

heapq.nlargest

nlargest

heapify

heapq.heapify

heappush

simple for with conditionals

Lightbulb Start Watching

Optional

typing.Optional

datetime.datetime

datetime

List

Simple

Reverse Every Ascending

insert

break

range

else

len

First

Compress List

typing.Iterable

Iterable

typing

append

list

recursive and loops

The Flat Dictionary

type

f-string

dict

items

elif

First

Remove All After

index

typing.Iterable

Iterable

typing

inline-if

record positions, remove the 0s, sort, put them back

Sort Except Zero

insert

remove

sort

index

typing.Iterable

Easy

Index Power

inline-if

list

int

len

2

reduced combinations

Count Inversions

combinations

itertools.combinations

functools.reduce

reduce

functools

First

Loading Cargo

functools.lru_cache

lru_cache

copy

decorator

functools

First

Geometry Figures

class

math.sqrt

sqrt

float

round

3

First

The Weapons

dataclasses.field

field

dataclass

dataclasses

dataclasses.dataclass

1

abstract army, and nested localized soldiers

Army Units

ABC

abc.ABC

abc.abstractmethod

abstractmethod

abc

read method half of the code ...

Hacker Language

case

match-case

class

ascii_letters

string.ascii_letters

First time to use __new__

Capital City

class

super

None

not

if

1

First

Straight Fight

class

hasattr

property

super

yield

First

Microwave Ovens

class

divmod

super

pass

format

with Lancers

The Lancers

class

property

super

decorator

None

Now with healers

The Healers

class

hasattr

property

super

decorator

used hash for the channels

Voice TV Control

class

values

dict-comp

keys

enumerate

First

3 Chefs

ABC

abc.ABC

abc

class

f-string

First

Every Person is Unique

case

match-case

class

f-string

date

First

The Vampires

class

super

None

max

inline-if

First

The Defenders

class

None

max

inline-if

while

First

Dialogues

dataclass

dataclasses

dataclasses.dataclass

class

f-string

dataclass

Party Invitations

dataclass

dataclasses

dataclasses.dataclass

AttributeError

class

First

Army Battles

class

None

inline-if

while

False

First

Text Editor

class

f-string

keys

None

max

pretty straightforward

Multicolored Lamp

class

len

1

simple

The Warriors

class

while

False

and

True

feels a little like cheating, so easy

Determinant

numpy.linalg

linalg

numpy

round

lambda

15

2

1

First

Aggregate by Operation

case

match-case

collections.defaultdict

defaultdict

filter

16

2

1

First

Long Pressed

StopIteration

iter

IndexError

Fizz Buzz

not

int

str

for

if

5

2

re with (.)\1

Adjacent Letters

re.subn

subn

r-string

re

while

with enumerate

Can Balance

functools.reduce

reduce

functools

enumerate

typing.Iterable

defaultdict

Switch Keys to Values

collections.defaultdict

defaultdict

add

dict

items

1

First

Caesar Cipher (decryptor)

ascii_lowercase

string.ascii_lowercase

chr

string

ord

Second - 1 liner with 2 lists

Fizz Buzz

index

lambda

list-comp

comprehension

str

1

not proud of this code

Currency Style

finditer

re.finditer

punctuation

string.punctuation

translate

short

Best Stock

dict

max

lambda

str

5

2

C...

Cut Sentence

rindex

inline-if

in

int

str

using f-string

Binary Count

f-string

count

int

6

First

Achilles and the Tortoise

math.gcd

The Greatest Common Divisor

math.gcd

gcd

math

First

Caesar Cipher (encryptor)

chr

ord

inline-if

join

comprehension

with suppress

Moore Neighbourhood

contextlib.suppress

suppress

contextlib

with

IndexError

capitalize, upper, lower

Correct Capital

capitalize

upper

lower

lambda

in

1

8

using sympy

Count Chains

sympy.Circle

Circle

sympy

Tuple

typing.Tuple

2

3

one-liner

Interesting, intersecting

lambda

or

and

2

numpy

Not in Order

numpy.array

array

numpy

as

lambda

2

Lambda

Move Zeros

lambda

count

if-comprehension

list-comp

comprehension

10

First

One Switch Strings

zip

bool

set

or

if-comprehension

re

Long Repeat

findall

re.findall

r-string

re

max

5

re.search and re.match

Is String a Number? (Part II)

match

re.match

re.search

search

r-string

sum with generator

Monkey Typing

set

lower

sum

in

comprehension

12

1

isnumeric

Is String a Number?

isnumeric

str

generator with defaultdict

When "k" is Enough!

collections.defaultdict

defaultdict

yield

collections

typing.Iterable

generator

Feed Pigeons

yield

max

while

True

for

simple for loop

Morse Encoder

lower

in

elif

for

if

kinda slow (not surprised about it)

Largest Rectangle in a Histogram

break

max

range

comprehension

else

with fractions

Oil Pie

Fraction

fractions.Fraction

fractions

abs

sum

divmod and match-case

Roman Numerals

case

match-case

divmod

while

5

1

easy with re

Find Quotes

findall

re.findall

r-string

re

1

with Enum

Reverse Roman Numerals

Enum

enum.Enum

enum

class

else

1

First

How to Find Friends

setdefault

union

set

in

append

max min

The Most Numbers

min

max

inline-if

1

nobrainer with weekday from datetime

When is Friday?

date

datetime.date

datetime

list-comp

split

12

numpy of course

Transposed Matrix

numpy.array

array

numpy

as

13

4

so much going on

IP Network: Route Summarization

iter

f-string

format

zip

map

one liner

Middle Characters

lambda

len

list comprehension with sorted

Zigzag Array

List

typing.List

typing

sorted

list-comp

Recursive

Swap Nodes

len

if

First

Long Non Repeat

set

not

range

len

for

First

The Fastest Horse

index

min

max

count

list-comp

2

short

Expand Intervals

typing.Iterable

Iterable

typing

sum

list-comp

4

5

1

multiple re.subn

Simplify Unix Path

re.subn

subn

r-string

re

while

5

1

using sympy

Shooting Range

sympy.Ray

Ray

sympy.Segment

Segment

sympy.Point

First

Barcode Reader

KeyError

startswith

endswith

enumerate

None

First

Solution for Anything

class

lambda

True

4

First

The Cheapest Flight

List

typing.List

pop

typing

inline-if

using re

Cookies

findall

re.findall

f-string

re

any endswith

The End of Other

endswith

any

if-comprehension

list-comp

comprehension

2

First

Create Intervals

pass

IndexError

pop

except

try

formatting with datetime

The Most Frequent Weekdays

date

datetime.date

datetime

else

if

Search all paths

Open Labyrinth

List

typing.List

pop

typing

while

max, lambda and sum

Worth of Words

max

lambda

sum

comprehension

4

5

strings and chain

Atbash Cipher

chain

itertools.chain

ascii_uppercase

string.ascii_uppercase

reversed

13

5

generator for splitting

Sort Sorted Groups

case

match-case

yield

sum

sorted

18

First

Text Formatting

fill

textwrap.fill

textwrap.wrap

wrap

textwrap

19

5

1

First

Scytale Encryption

Optional

typing.Optional

chain

itertools.chain

itertools

1

First

Rotating Grille Cipher

Optional

typing.Optional

List

typing.List

zip

First

Common Tail

zip

None

break

list

int

First

Place Queens

ReferenceError

chain

itertools.chain

raise

itertools.product

with sympy - with some ugly code to adapt the equation

Three Points Circle

sympy.sqrt

sympy.Circle

Circle

sympy.Point

Point

hashlib

Simple Hashlib

hashlib.new

new

hashlib

with some math

Humpty Dumpty Form

math.atanh

atanh

math.asin

asin

math.pi

double loop

The Longest Palindromic

while

len

if

find primes with division by zero

Numbers Factory

ZeroDivisionError

break

except

try

sorted

lot's of tests

Speech Module

case

match-case

strip

if

First

Sum Consecutives

append

else

len

for

if

parsing TABLE as given

Ryerson Letter Grade

splitlines

split

comprehension

int

str

First

Robot Sort

rstrip

f-string

index

max

while

matching

Digit Stack

case

match-case

pop

append

split

1

2

re.findall

Double Substring

findall

re.findall

r-string

re

max

straightforward implementation of formulas

Simple Areas

math.pi

pi

math.sqrt

sqrt

math

2

sets

House Password

digits

string.digits

ascii_uppercase

string.ascii_uppercase

ascii_lowercase

using all

Word Pattern

f-string

all

isalpha

isdigit

max

boring solution

Group Equal consecutive

not

append

else

for

if

numpy

Skew-symmetric Matrix

numpy.array

array

numpy

as

all

not the quickest

Saw the Stick

break

sum

elif

append

list-comp

sums

Weak Point

zip

index

min

sum

list-comp

date and timedelta

Weekly Calendar

datetime.timedelta

timedelta

date

datetime.date

datetime

7

5

1

date and timedelta

Next Birthday

Dict

typing.Dict

Tuple

typing.Tuple

date

1

using decimal to get more precision

Repeating Decimals

decimal.getcontext

getcontext

Decimal

decimal.Decimal

decimal

one liner

Non Empty Lines

strip

lambda

sum

split

comprehension

with map and nonlocal

Restricted Sum

add

map

list

First

The Hamming Distance

bin

count

First

Number Base

ValueError

except

try

int

str

First

Unlucky Days

date

datetime.date

datetime

lambda

sum

4

7

1

reuse of cheapest flights

Useless Flights

List

typing.List

pop

typing

inline-if

14

First

Reversed Permutation Index

math.factorial

factorial

copy

math

pop

datetime

The First Working Day

datetime.strptime

strptime

datetime.timedelta

timedelta

datetime.datetime

Recursive

Permutation Index

math.factorial

factorial

Tuple

typing.Tuple

math

9 or 1 line

Rectangles Union

update

Tuple

typing.Tuple

set-comp

List

First

Stair Steps

max

range

len

for

loop

Weekend Counter

Ellipsis

datetime.timedelta

timedelta

datetime

while

First

Web Log Sessions

splitlines

match

re.match

datetime.datetime

r-string

slicing and comparing with numpy

Pattern Recognition

numpy.array

array

numpy

as

all

20

round sqrt

The Nearest Square Number

math.sqrt

sqrt

round

math

5

1

try except else

Halloween Monsters

ValueError

pass

remove

except

try

First

One line Drawing

collections.defaultdict

defaultdict

copy

values

collections

Recursive

Completely Empty

TypeError

iter

all

except

try

Cached

Ghosts Age

cache

functools.cache

decorator

functools

keys

re.subn - mark liberties with lowercase

Eaten Go Stones

re.subn

subn

r-string

zip

re

2

build up

Ugly Numbers

update

set

not

sorted

while

5

defaultdict

Probably Dice

collections.defaultdict

defaultdict

dict-comp

collections

lambda

2

maxed comprehensions

Stock Profit

max

print

list-comp

range

list

2

4

recursive one-liner

Shorter Set

min

max

lambda

inline-if

and

1

re

Backspace Apply

re.subn

subn

r-string

re

while

one-liner

Excel Column Number

ord

enumerate

lambda

sum

comprehension

set and re.split

Unique Email Addresses

re.split

r-string

add

re

replace

First

Network Loops

collections.defaultdict

defaultdict

add

collections

pop

First

Fractions Addition

Fraction

fractions.Fraction

fractions

f-string

sum

First

The Good Radix

ValueError

pass

except

try

range

sympy

Wild Dogs

sympy.Line

Line

sympy.Point

Point

sympy

First

The Stone Wall

strip

zip

enumerate

max

lambda

rfind and find

Ground for the House

operator.or_

or_

splitlines

rfind

operator

First

The Stones

any

inline-if

if-comprehension

False

True

First

Treasures

f-string

keys

min

print

sorted

First

Keys and Locks

splitlines

strip

remove

zip

not

First

The Secret Room

functools.lru_cache

lru_cache

raise

divmod

decorator

sorted(filter

The Ship Teams

filter

lambda

or

sorted

some counting with ascii_lowercase

Most Wanted Letter

ascii_lowercase

string.ascii_lowercase

values

dict-comp

string

does somebody have a different solution?

Length of the String

int

str

len