borisuvarov profile - python coding challenges

List comprehension

Non-unique Elements

count

if-comprehension

list-comp

comprehension

13

Python has some magic skills

Even the Last

sum

else

if

2

3

Using * to unpack the tuple

Days Between

date

datetime.date

datetime

abs

With some preparations

Pawn Brotherhood

get

or

in

append

int

Straightforward solution

Three Words

isalpha

False

True

split

else

That's why Python is so cool

Right to Left

replace

join

All lines and diags + check for 4 number in a row

Find Sequence

enumerate

join

if-comprehension

in

False

Simplest stack

Brackets

values

keys

continue

pop

not

Simple is better than complex

Boolean Algebra

elif

and

else

if

Implicit str to list typecast

Verify Anagrams

replace

lower

sorted

Standard solution

Digits Multiplication

int

str

for

if

unicodedata's normalization

Remove Accents

category

unicodedata.category

normalize

unicodedata.normalize

unicodedata

In Russia, we call it "govnocode"

Morse Clock

rjust

format

replace

split

int

Not bright, but works

The Most Wanted Letter

setdefault

values

get

items

isalpha

3

collections.deque

Letter Queue

startswith

collections.deque

deque

collections

join

Dirty and not bulletproof, will refactor it later

Striped Words

upper

isalpha

replace

except

try

First

I Love Python!

Index shift

Bird Language

while

in

elif

else

len

Subset and ascii_lowercase

Pangram

issubset

ascii_lowercase

string.ascii_lowercase

string

set

Intersections of sets

Common Words

set

sorted

join

split

Sorted with key function

Absolute Sorting

abs

sorted

Yes, you can join lazy generator expression!

Secret Message

isupper

join

if-comprehension

comprehension

Just another boring solution

Count Inversions

for

if

5

Zen of Python violation

Flatten a List

isinstance

not

inline-if

sum

list

3

It can take negative indexes too

Index Power

IndexError

except

try

2

12

Obvious and clear

Median

sort

else

int

len

if

2

Draft

Xs and Os Referee

count

or

append

for

if

Basics of class creation

Building Base

class

format

Dirty solution, will refactor it later

Friends

class

union

iter

functools.reduce() + fractions.gcd() (math.gcd() in Python 3.5)

The Greatest Common Divisor

fractions.gcd

gcd

fractions

functools.reduce

reduce

1

Just let yourself be boring!

Fizz Buzz

elif

else

str

if

2

7

Don't convert bin to str

Binary Count

bin

count

First draft, definitely need some refactoring

Moore Neighbourhood

pass

IndexError

except

try

and

sum() of "Trues"

Monkey Typing

lower

sum

in

comprehension

Simplest solution

Clock Angle

abs

split

int

if

Subtraction cycle

Roman Numerals

while

for

6

1

It's not a simple task, guys

How to Find Friends

isdisjoint

issubset

update

any

remove

1

OK, I'm a straightforward guy

The Most Numbers

min

max

else

if

map's here to convert tuples to list

Transposed Matrix

zip

map

list

4

Standard and kinda dumb

The End of Other

endswith

False

and

True

for

Too long lines, need to PEP8 it later

Humpty Dumpty Form

math.atanh

atanh

math.asin

asin

math.pi

Superb example of the govnocode

Network Attack

values

keys

add

items

enumerate

Regex

House Password

re.compile

compile

re

False

True

7

2

Just meh, nothing special

Simple Areas

math.pi

pi

math.sqrt

sqrt

math

Simple, maybe not optimal

Digit Stack

pop

append

split

int

for

So shitty, definitely refactor it later...

Moria Doors

replace

set

lower

append

split

Simple cycle

Skew-symmetric Matrix

zip

False

True

range

len

Ugly and inconsistent

Weak Point

zip

sum

list

for

if

Twice through the camera

Auto Painting

inline-if

join

while

append

list-comp

Binary XOR

The Hamming Distance

bin

count

Recursion on tail

Restricted Sum

len

if

int() with base parameter

Number Base

ValueError

except

try

int

weekday()

Weekend Counter

datetime.timedelta

timedelta

datetime

while

in

Right rounding is the key!

The Angles of a Triangle

math.degrees

degrees

math.acos

acos

round

Don't like it, but works for now

Ghosts Age

index

in

append

range

else

2

functools.reduce()

Funny Addition

functools.reduce

reduce

functools

lambda

1