ArchTauruS profile - python coding challenges

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Easy Unpack

6

Some tricks with max() function.

The Most Frequent

set

max

count

comprehension

6

1

A little trick is that Python treats boolean as 0/1 when it think so ...

Correct Sentence

endswith

upper

19

15

1

Second

Easy Unpack

5

Second

The Most Frequent

set

max

count

comprehension

Clear that you have to have a look ;)

Easy Unpack

inline-if

len

Clear that you have to have a look ;)

The Most Frequent

set

max

count

comprehension

First

Correct Sentence

upper

inline-if

str

2

First

All the Same

set

len

4

Looking for protector in dictionary.

Pawn Brotherhood

f-string

break

in

int

for

Seconds to Degrees

Sun Angle

datetime.datetime

datetime

or

if

3

6

1

Use set() to make it speedy

Non-unique Elements

add

remove

continue

set

if-comprehension

2

Learn some things more about time module.

Date and Time Converter

time.strftime

time.strptime

strftime

time

strptime

4

2

job can be considered as searching for '\D+ \D+ \D+'

Three Words

re.search

search

r-string

re

bool

6

1

one-line

Even the Last

inline-if

sum

4

1

sorted, reverse, slicing, done!

Bigger Price

lambda

sorted

True

7

1

A simple but readable dictionary comprehension (字典解析式)

Popular Words

dict-comp

lower

count

split

comprehension

2

A string slicing operation, with the help from trinocular operator (三元运算符)

Between Markers

find

inline-if

in

len

10

1

string.find is better than string.index

Second Index

find

None

inline-if

11

1

Use re.search, but not re.findall.

First Word

re.search

search

re

7

30

3

Second

Three Words

re.search

search

r-string

re

bool

13

3

Third

Even the Last

inline-if

sum

12

Second

Popular Words

dict-comp

lower

count

split

comprehension

4

1

Second

Second Index

find

None

inline-if

2

datetime did it!

Sun Angle

datetime.datetime

datetime

or

if

Clear that you do have to have a look ;)

Morse Decoder

capitalize

get

join

split

comprehension

4

Clear that you don have to have a look ;)

Date and Time Converter

time.strftime

time.strptime

strftime

time

strptime

Clear that you have to have a look ;)

Bigger Price

lambda

sorted

True

Clear that you have to have a look ;)

Popular Words

dict-comp

lower

count

split

comprehension

index_begin, index_end, done!

Between Markers

index

inline-if

in

str

len

3

First, Second, OK!

Second Index

index

count

str

if

re

First Word

findall

re.findall

r-string

re

str

Third

Non-unique Elements

count

if-comprehension

list-comp

comprehension

First

Right to Left

replace

join

First

Days Between

date

datetime.date

datetime

abs

First

Pawn Brotherhood

break

in

int

str

for

First

Three Words

isalpha

False

True

split

else

Second

Even the Last

inline-if

sum

First

Even the Last

except

try

sum

Second

Non-unique Elements

count

if-comprehension

list-comp

comprehension

First

Non-unique Elements

count

append

for

if

4

reduce() function is great for this task

Digits Multiplication

functools.reduce

reduce

functools

map

replace

2

3

Second

Digits Multiplication

functools.reduce

reduce

functools

map

replace

4

First

Boolean Algebra

eval

First

Verify Anagrams

replace

lower

sorted

First

Find Sequence

map

join

if-comprehension

in

False

First

Brackets

not

join

if-comprehension

in

elif

First

Digits Multiplication

if-comprehension

list-comp

comprehension

int

str

First

Conversion into CamelCase

title

map

join

split

str

4

Second

Call to Home

math.ceil

ceil

values

get

math

2

Why it is speed I think.

The Most Wanted Letter

dict-comp

isalpha

max

lower

lambda

4

How ease an array can be sorted with a key?

Absolute Sorting

abs

sorted

7

1

Join all uppercase letters

Secret Message

isupper

join

if-comprehension

comprehension

6

1

First

Call to Home

values

bool

inline-if

sum

in

First

Time Converter (24h to 12h)

datetime.datetime

datetime

replace

if

First

Conversion from CamelCase

re.sub

sub

r-string

re

lower

First

The Hidden Word

divmod

f-string

find

map

None

4

Second

Absolute Sorting

abs

sorted

18

Clear that you do have to have a look ;)

Pangram

all

lower

in

comprehension

1

Third

The Most Wanted Letter

lower

for

if

First

Secret Message

isupper

join

if-comprehension

comprehension

First

Bird Language

re.sub

sub

re

3

90

7

I love Python!

I Love Python!

9

1

First

I Love Python!

4

First

Striped Words

punctuation

string.punctuation

string

map

isalpha

First

Letter Queue

else

for

if

First

Absolute Sorting

abs

sorted

First

Common Words

sorted

join

if-comprehension

in

list-comp

Second

The Most Wanted Letter

ascii_lowercase

string.ascii_lowercase

as

string

lower

First

The Most Wanted Letter

ascii_lowercase

string.ascii_lowercase

as

string

lower

First

Morse Clock

isdigit

join

append

list-comp

split

1

Nice and Neat!

Xs and Os Referee

inline-if

in

11

8

try ... except ... makes jobs easier.

Index Power

except

try

1

time module did it

Time Converter (12h to 24h)

time.strftime

time.strptime

strftime

time

strptime

3

Second

Index Power

except

try

1

First

The Flat Dictionary

isinstance

dict

items

pop

join

First

Loading Cargo

combinations

itertools.combinations

itertools

min

abs

First

Count Inversions

sorted

while

range

list

len

First

Index Power

inline-if

len

First

Xs and Os Referee

or

elif

range

for

if

First

Median

sort

else

len

if

Just two more attack points!

The Warriors

class

property

decorator

while

and

2

16

First

Friends

class

Exception

add

tuple

remove

First

Dialogues

class

f-string

pass

add

None

First

Every Person is Unique

class

f-string

date

datetime.date

datetime

First

Voice TV Control

class

isinstance

inline-if

in

else

First, I think it is clear :)

Army Battles

class

staticmethod

property

decorator

extend

10

14

First

Multicolored Lamp

class

1

平庸

The Warriors

class

property

decorator

while

and

I guess most of you did this the same.

The Greatest Common Divisor

math.gcd

gcd

functools.reduce

reduce

functools

First

The Greatest Common Divisor

math.gcd

gcd

functools.reduce

reduce

functools

Just works

Chess Knight

union

f-string

chr

add

ord

10

str object has maketrans() and translate() functions, great!

Caesar Cipher (encryptor)

translate

str

4

8

f-sting makes it possible and neat in one line code done this job

Fizz Buzz

f-string

strip

or

14

1

Since `sorted(dict, key=lambda x:dict[x])` can work, why not ...

Best Stock

max

lambda

4

4th

Fizz Buzz

f-string

strip

or

3

2

Third

Fizz Buzz

f-string

strip

or

str

7

1

Second

Fizz Buzz

strip

or

join

str

13

Second

Best Stock

max

lambda

6

Python Build-in Makes It Easy, Clear and Readable, text.translate(trans_table)

Caesar Cipher (encryptor)

translate

ascii_lowercase

string.ascii_lowercase

string

str

First

Cut Sentence

startswith

endswith

strip

join

elif

Clear that you do have to have a look ;)

What Is Wrong With This Family?

set

count

in

False

and

2

1

Clear that you have to have a look ;)

Best Stock

items

max

comprehension

2

First

Moore Neighbourhood

sum

if-comprehension

elif

and

list

First

Binary Count

bin

map

sum

list

int

First

Fizz Buzz

not

str

if

The most clear and hard solution!

Identify Block

in

if

1

Third

Roman Numerals

join

if-comprehension

list-comp

range

comprehension

Second

Long Repeat

max

else

for

if

1

So ease?

The Most Numbers

min

max

inline-if

15

First

Morse Encoder

get

lower

join

comprehension

2

Third

The Most Numbers

min

max

inline-if

8

First !!!!!!!!!!!!!!!!!

Largest Rectangle in a Histogram

copy

items

pop

max

range

Second

The Most Numbers

min

max

inline-if

7

Second, with better understading the roman number, which I will keep it as a function.

Reverse Roman Numerals

startswith

items

replace

while

for

6

Clear code with comment, enjoy :)

Reverse Roman Numerals

re.search

search

re

bool

while

4

First

Long Repeat

findall

re.findall

r-string

re

sorted

Second

Monkey Typing

lower

sum

if-comprehension

in

comprehension

1

First

Monkey Typing

lower

sum

if-comprehension

in

list-comp

1

2

First

The Most Numbers

min

max

inline-if

Second

Roman Numerals

join

if-comprehension

list-comp

range

comprehension

First

Feed Pigeons

while

else

if

1

First

How to Find Friends

extend

pop

break

set

not

First

Roman Numerals

join

if-comprehension

list-comp

range

comprehension

First

When is Friday?

datetime.strptime

strptime

datetime.datetime

datetime

First

Multiplication Table

f-string

sum

list-comp

comprehension

int

1

First

The Fastest Horse

index

min

max

list

int

1.88400006294e-06s per call

The Shortest Knight's Path

ord

index

abs

in

if

1

15

4

First

The Shortest Knight's Path

index

abs

in

int

if

3

Second

Transposed Matrix

zip

map

list

First

Transposed Matrix

list-comp

range

comprehension

len

First

The Most Frequent Weekdays

union

intersection

date

datetime.date

datetime

1

First

Simplify Unix Path

startswith

not

or

join

if-comprehension

First

Merge Intervals

add

set

not

sorted

append

Second

Create Intervals

not

sorted

append

range

len

4

First

Create Intervals

not

sorted

append

range

len

1

First, anything

Solution for Anything

class

True

Clear that you do have to have a look ;)

Long Repeat Inside

X

re.X

findall

re.findall

r-string

First

Area of a Convex Polygon

math.asin

asin

math.degrees

degrees

float

First

Open Labyrinth

pop

index

while

in

append

1

First

The End of Other

endswith

False

True

len

for

First

Humpty Dumpty Form

math.tan

tan

math.sin

sin

math.atanh

Clear that you do have to have a look ;)

Simple Hashlib

hashlib.sha1

hashlib.sha224

hashlib.sha256

hashlib.sha384

hashlib.sha512

1

Clear that you do have to have a look ;)

The Longest Palindromic

True

range

len

for

if

Second

Friendly Number

abs

inline-if

if-comprehension

list-comp

range

First

Friendly Number

abs

inline-if

if-comprehension

list-comp

range

First

Numbers Factory

continue

or

while

in

True

"--" bug corrected

Three Points Circle

eval

format

round

replace

Very Clear ~~~

Three Points Circle

eval

format

round

4

3

First

Three Points Circle

eval

type

float

round

tuple

First

Speech Module

pass

map

join

elif

list

Clear that you do have to have a look ;)

Simple Areas

math.pi

pi

math

len

First

Simple Areas

math.pi

pi

math

len

Clear that you do have to have a look ;)

Double Substring

count

range

len

for

if

4

Third

House Password

islower

any

isupper

isdigit

comprehension

First

Robot Sort

pop

max

not

join

while

First

Calculate Islands

divmod

remove

pop

sorted

while

Object Oriented

Network Attack

class

object

all

not

while

2

First

Digit Stack

pop

in

elif

and

append

First

Golden Pyramid

bin

map

range

list

int

Second

House Password

islower

isupper

break

isdigit

False

First

House Password

break

in

False

True

len

hash() and set() make unique lines

The Rows of Cakes

hash

class

raise

is

f-string

First ... just works

The Rows of Cakes

hashlib.md5

md5

class

hashlib

raise

First

Skew-symmetric Matrix

all

range

comprehension

len

2

First

Saw the Stick

break

sum

if-comprehension

list-comp

range

1

First

Restricted Prime

chr

ord

join

in

comprehension

AStar

Digging a Canal

class

insert

is

continue

pop

First

Square Spiral

cycle

itertools.cycle

divmod

18

2

First

Playfair Cipher

digits

string.digits

divmod

ascii_lowercase

string.ascii_lowercase

1

First

Word Pattern

all

format

zip

map

isalpha

First

Weak Point

index

min

sum

list-comp

range

First

Node Disconnected Users

values

items

pop

set

sum

So ease, int(str_number, base) ... try ... except ...

Number Base

except

try

int

3

Second

Number Base

except

try

int

1

Clear!

Restricted Sum

inline-if

First

Restricted Sum

if

First

The Hamming Distance

bin

count

First

Number Base

except

try

int

A solution using re module.

Stressful Subject

re.I

I

endswith

f-string

re.search

8

1

Minimum Edit Distance - Levenshtein Distance! (min version)

String Conversion

min

range

int

len

for

Minimum Edit Distance - Levenshtein Distance!

String Conversion

min

max

or

inline-if

append

This is Levenshtein Distance!

String Conversion

min

max

inline-if

in

list-comp

First

The First Working Day

datetime.timedelta

timedelta

date

datetime.date

datetime

Last

Spaceship Landing Strip

all

max

if-comprehension

in

and

16

3

2

First

Min and Max

hasattr

get

map

index

None

First

Radiation Search

union

set-comp

remove

pop

while

First

The Angles of a Triangle

math.degrees

degrees

math.acos

acos

round

First

Weekend Counter

sum

if-comprehension

list-comp

range

comprehension

First

Berserk Rook

itertools.permutations

permutations

itertools

pop

break

1

Clear that you do have to have a look ;)

Completely Empty

TypeError

iter

any

except

try

1

First

ADFGVX Cipher

divmod

dict-comp

zip

isalpha

index

16

3

First

Ghosts Age

index

19

1

2

First

One line Drawing

remove

break

set

count

inline-if

First

The Square Chest

all

sort

sum

in

list-comp

19

6

3

First

Keywords Finder

remove

find

sort

break

not

First

Mono Captcha

break

sum

while

append

list-comp

Last

Ore In The Desert

round

remove

abs

not

list-comp

16

4

First

Ore In The Desert

round

abs

not

in

append

First

The Good Radix

max

sum

list-comp

range

comprehension

First

Funny Addition

sum

1

First

Rotate Hole

is

all

inline-if

if-comprehension

True

First Treasures Taken

Treasures

f-string

lambda

sorted

while

in

3

果然是贼 ...

Safe Code

eval

re.search

search

re

replace

好似做贼...

Keys and Locks

re.search

search

zip

map

pop

Second

Wild Dogs

combinations

itertools.combinations

set-comp

add

itertools

初步实现

The Secret Room

index

not

or

sorted

join

平面几何复习题

Wild Dogs

combinations

itertools.combinations

set-comp

add

itertools

再修改一下下

The Stone Wall

divmod

enumerate

replace

max

split

1

小修改

The Stone Wall

divmod

enumerate

replace

max

split

2

一气呵成

The Stone Wall

divmod

enumerate

replace

max

split

3

大家觉得如何就如何吧...

Compass, Map and Spyglass

divmod

map

index

abs

max

不够完美

Ground for the House

divmod

enumerate

min

replace

max

一般般

The Ship Teams

items

inline-if

sorted

append

for

19

1