From b5a1fa18ba681e4af5b4906edb1acb955534d44e Mon Sep 17 00:00:00 2001
From: Rohit Tanwar <mst10041967@gmail.com>
Date: Sat, 27 Jan 2018 11:03:02 +0530
Subject: [PATCH] factorial

---
 README.md                    | 60 +++++++++---------------------------
 scripts/lint.py              |  2 +-
 snippets/average.md          |  4 +--
 snippets/chunk.md            |  4 +--
 snippets/compact.md          |  4 +--
 snippets/count_occurences.md |  4 +--
 snippets/count_vowels.md     |  4 +--
 snippets/deep_flatten.md     |  4 +--
 snippets/difference.md       |  4 +--
 snippets/factorial.md        |  4 +--
 snippets/gcd.md              |  4 +--
 snippets/lcm.md              |  4 +--
 snippets/max_n.md            |  4 +--
 snippets/min_n.md            |  4 +--
 snippets/shuffle.md          |  4 +--
 snippets/spread.md           |  4 +--
 snippets/zip.md              |  4 +--
 17 files changed, 31 insertions(+), 91 deletions(-)

diff --git a/README.md b/README.md
index f2c4a8ccf..8a3002fdb 100644
--- a/README.md
+++ b/README.md
@@ -48,12 +48,10 @@ Returns the average of two or more numbers.
 
 Takes the sum of all the `args` and divides it by `len(args)`. The secind argument `0.0` in sum is to handle floating point division in `python2`.
 
-```py 
-
+```py
 
 def average(*args):
     return sum(args, 0.0) / len(args)
-
  
  ```
 
@@ -75,15 +73,13 @@ Calculates the factorial of a number.
 
 Use recursion. If `num` is less than or equal to `1`, return `1`. Otherwise, return the product of `num` and the factorial of `num - 1`. Throws an exception if `num` is a negative or a floating point number.
 
-```py 
-
+```py
 
 def factorial(num):
     if not ((num >= 0) & (num % 1 == 0)):
         raise Exception(
             f"Number( {num} ) can't be floating point or negative ")
     return 1 if num == 0 else num * factorial(num - 1)
-
  
  ```
 <details><summary>View Examples</summary>
@@ -107,8 +103,7 @@ The `helperGcdfunction` uses recursion. Base case is when `y` equals `0`. In thi
 
 Uses the reduce function from the inbuilt module `functools`. Also defines a method `spread` for javascript like spreading of lists.
 
-```py 
-
+```py
 
 from functools import reduce
 
@@ -131,7 +126,6 @@ def gcd(*args):
         return x if not y else gcd(y, x % y)
 
     return reduce((lambda x, y: _gcd(x, y)), numbers)
-
  
  ```
 
@@ -155,8 +149,7 @@ Use the `greatest common divisor (GCD)` formula and the fact that `lcm(x,y) = x
 
 Uses `reduce` function from the inbuilt module `functools`. Also defines a method `spread` for javascript like spreading of lists.
 
-```py 
-
+```py
 
 from functools import reduce
 
@@ -182,7 +175,6 @@ def lcm(*args):
         return x * y / _gcd(x, y)
 
     return reduce((lambda x, y: _lcm(x, y)), numbers)
-
  
  ```
 
@@ -205,8 +197,7 @@ Returns the `n` maximum elements from the provided list. If `n` is greater than
 
 Use `list.sort()` combined with the `deepcopy` function from the inbuilt `copy` module to create a shallow clone of the list and sort it in ascending order and then use `list.reverse()` reverse it to make it descending order. Use `[:n]` to get the specified number of elements. Omit the second argument, `n`, to get a one-element array
 
-```py 
-
+```py
 
 from copy import deepcopy
 
@@ -216,7 +207,6 @@ def max_n(arr, n=1):
     numbers.sort()
     numbers.reverse()
     return numbers[:n]
-
  
  ```
 
@@ -238,8 +228,7 @@ Returns the `n` minimum elements from the provided list. If `n` is greater than
 
 Use `list.sort()` combined with the `deepcopy` function from the inbuilt `copy` module to create a shallow clone of the list and sort it in ascending order. Use `[:n]` to get the specified number of elements. Omit the second argument, `n`, to get a one-element array
 
-```py 
-
+```py
 
 from copy import deepcopy
 
@@ -248,7 +237,6 @@ def min_n(arr, n=1):
     numbers = deepcopy(arr)
     numbers.sort()
     return numbers[:n]
-
  
  ```
 
@@ -272,8 +260,7 @@ Chunks an array into smaller lists of a specified size.
 
 Uses `range` to create a list of desired size. Then use `map` on this list and fill it with splices of `arr`.
 
-```py 
-
+```py
 
 from math import ceil
 
@@ -282,7 +269,6 @@ def chunk(arr, size):
     return list(
         map(lambda x: arr[x * size:x * size + size],
             list(range(0, ceil(len(arr) / size)))))
-
  
  ```
 
@@ -303,12 +289,10 @@ Removes falsey values from a list.
 
 Use `filter()` to filter out falsey values (False, None, 0, and "").
 
-```py 
-
+```py
 
 def compact(arr):
     return list(filter(lambda x: bool(x), arr))
-
  
  ```
 
@@ -331,14 +315,12 @@ Counts the occurrences of a value in an list.
 
 Uses the `reduce` functin from built-in module `functools` to increment a counter each time you encounter the specific value inside the list.
 
-```py 
-
+```py
 
 def count_occurences(arr, val):
     return reduce(
         (lambda x, y: x + 1 if y == val and type(y) == type(val) else x + 0),
         arr)
-
  
  ```
 
@@ -359,8 +341,7 @@ Deep flattens a list.
 
 Use recursion. Use `list.extend()` with an empty array (`result`) and the spread function to flatten a list. Recursively flatten each element that is a list.
 
-```py 
-
+```py
 
 def spread(arg):
     ret = []
@@ -377,7 +358,6 @@ def deep_flatten(arr):
     result.extend(
         spread(list(map(lambda x: deep(x) if type(x) == list else x, arr))))
     return result
-
  
  ```
 
@@ -398,13 +378,11 @@ Returns the difference between two arrays.
 
 Create a `set` from `b`, then use list comprehension to only keep values not contained in `b`
 
-```py 
-
+```py
 
 def difference(a, b):
     b = set(b)
     return [item for item in a if item not in b]
-
  
  ```
 <details><summary>View Examples</summary>
@@ -426,8 +404,7 @@ Randomizes the order of the values of an list, returning a new list.
 
 Uses the [Fisher-Yates algorithm](https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle) to reorder the elements of the list.
 
-```py 
-
+```py
 
 from copy import deepcopy
 from random import randint
@@ -441,7 +418,6 @@ def shuffle(arr):
         i = randint(0, m)
         temp_arr[m], temp_arr[i] = temp_arr[i], temp_arr[m]
     return temp_arr
-
  
  ```
 
@@ -461,8 +437,7 @@ shuffle(foo) # [2,3,1] , foo = [1,2,3]
 
 Implements javascript's spread syntax as a function. Flattens the list(non-deep) and returns an list.
 
-```py 
-
+```py
 
 def spread(arg):
     ret = []
@@ -472,7 +447,6 @@ def spread(arg):
         else:
             ret.append(i)
     return ret
-
  
  ```
 
@@ -496,8 +470,7 @@ Creates a list of elements, grouped based on the position in the original lists.
 
 Use `max` combined with `list comprehension` to get the length of the longest list in the arguments. Loops for `max_length` times grouping elements. If lengths of `lists` vary `fill_value` is used. By default `fill_value` is `None`.
 
-```py 
-
+```py
 
 def zip(*args, fillvalue=None):
     max_length = max([len(arr) for arr in args])
@@ -507,7 +480,6 @@ def zip(*args, fillvalue=None):
             args[k][i] if i < len(args[k]) else None for k in range(len(args))
         ])
     return result
-
  
  ```
 
@@ -532,15 +504,13 @@ Retuns `number` of vowels in provided `string`.
 
 Use a regular expression to count the number of vowels `(A, E, I, O, U)` in a string.
 
-```py 
-
+```py
 
 import re
 
 
 def count_vowels(str):
     return len(len(re.findall(r'[aeiou]', str, re.IGNORECASE)))
-
  
  ```
 
diff --git a/scripts/lint.py b/scripts/lint.py
index f01eadc82..2324adfe3 100644
--- a/scripts/lint.py
+++ b/scripts/lint.py
@@ -11,7 +11,7 @@ for file in files:
     originalCode = re.search(codeRe,fileData).group(0)
     #print(re.split(codeRe,fileData)[0])
     formatedCode = autopep8.fix_code(re.split(codeRe,fileData)[1])
-    fileToSave = fileData.replace(originalCode,('```python \n'+formatedCode+'\n```'))
+    fileToSave = fileData.replace(originalCode,('```python'+formatedCode+'```'))
     someFile = open("snippets/"+file,'w')
     someFile.write(fileToSave)
     someFile.close()
\ No newline at end of file
diff --git a/snippets/average.md b/snippets/average.md
index d818556a0..33a2480c3 100644
--- a/snippets/average.md
+++ b/snippets/average.md
@@ -6,12 +6,10 @@ Returns the average of two or more numbers.
 
 Takes the sum of all the `args` and divides it by `len(args)`. The secind argument `0.0` in sum is to handle floating point division in `python2`.
 
-```python 
-
+```python
 
 def average(*args):
     return sum(args, 0.0) / len(args)
-
 ```
 
 ``` python
diff --git a/snippets/chunk.md b/snippets/chunk.md
index f6f180acb..5b8d500f9 100644
--- a/snippets/chunk.md
+++ b/snippets/chunk.md
@@ -4,8 +4,7 @@ Chunks an array into smaller lists of a specified size.
 
 Uses `range` to create a list of desired size. Then use `map` on this list and fill it with splices of `arr`.
 
-```python 
-
+```python
 
 from math import ceil
 
@@ -14,7 +13,6 @@ def chunk(arr, size):
     return list(
         map(lambda x: arr[x * size:x * size + size],
             list(range(0, ceil(len(arr) / size)))))
-
 ```
 
 ``` python
diff --git a/snippets/compact.md b/snippets/compact.md
index 12b5a7ba8..188e9a3fb 100644
--- a/snippets/compact.md
+++ b/snippets/compact.md
@@ -4,12 +4,10 @@ Removes falsey values from a list.
 
 Use `filter()` to filter out falsey values (False, None, 0, and "").
 
-```python 
-
+```python
 
 def compact(arr):
     return list(filter(lambda x: bool(x), arr))
-
 ```
 
 ``` python
diff --git a/snippets/count_occurences.md b/snippets/count_occurences.md
index c08bfad80..f580d5fb8 100644
--- a/snippets/count_occurences.md
+++ b/snippets/count_occurences.md
@@ -6,14 +6,12 @@ Counts the occurrences of a value in an list.
 
 Uses the `reduce` functin from built-in module `functools` to increment a counter each time you encounter the specific value inside the list.
 
-```python 
-
+```python
 
 def count_occurences(arr, val):
     return reduce(
         (lambda x, y: x + 1 if y == val and type(y) == type(val) else x + 0),
         arr)
-
 ```
 
 ```python
diff --git a/snippets/count_vowels.md b/snippets/count_vowels.md
index 87b0fbb47..69a35f4d0 100644
--- a/snippets/count_vowels.md
+++ b/snippets/count_vowels.md
@@ -4,15 +4,13 @@ Retuns `number` of vowels in provided `string`.
 
 Use a regular expression to count the number of vowels `(A, E, I, O, U)` in a string.
 
-```python 
-
+```python
 
 import re
 
 
 def count_vowels(str):
     return len(len(re.findall(r'[aeiou]', str, re.IGNORECASE)))
-
 ```
 
 ``` python
diff --git a/snippets/deep_flatten.md b/snippets/deep_flatten.md
index 0e52e1c15..877f0ef78 100644
--- a/snippets/deep_flatten.md
+++ b/snippets/deep_flatten.md
@@ -4,8 +4,7 @@ Deep flattens a list.
 
 Use recursion. Use `list.extend()` with an empty array (`result`) and the spread function to flatten a list. Recursively flatten each element that is a list.
 
-```python 
-
+```python
 
 def spread(arg):
     ret = []
@@ -22,7 +21,6 @@ def deep_flatten(arr):
     result.extend(
         spread(list(map(lambda x: deep(x) if type(x) == list else x, arr))))
     return result
-
 ```
 
 ```python
diff --git a/snippets/difference.md b/snippets/difference.md
index 1dd327304..189b74902 100644
--- a/snippets/difference.md
+++ b/snippets/difference.md
@@ -4,13 +4,11 @@ Returns the difference between two arrays.
 
 Create a `set` from `b`, then use list comprehension to only keep values not contained in `b`
 
-```python 
-
+```python
 
 def difference(a, b):
     b = set(b)
     return [item for item in a if item not in b]
-
 ```
 ``` python
 difference([1, 2, 3], [1, 2, 4]) # [3]
diff --git a/snippets/factorial.md b/snippets/factorial.md
index a22f2c67f..19afdf942 100644
--- a/snippets/factorial.md
+++ b/snippets/factorial.md
@@ -4,15 +4,13 @@ Calculates the factorial of a number.
 
 Use recursion. If `num` is less than or equal to `1`, return `1`. Otherwise, return the product of `num` and the factorial of `num - 1`. Throws an exception if `num` is a negative or a floating point number.
 
-```python 
-
+```python
 
 def factorial(num):
     if not ((num >= 0) & (num % 1 == 0)):
         raise Exception(
             f"Number( {num} ) can't be floating point or negative ")
     return 1 if num == 0 else num * factorial(num - 1)
-
 ```
 ``` python
 factorial(6) # 720
diff --git a/snippets/gcd.md b/snippets/gcd.md
index 1df3b60f8..e66f371e4 100644
--- a/snippets/gcd.md
+++ b/snippets/gcd.md
@@ -8,8 +8,7 @@ The `helperGcdfunction` uses recursion. Base case is when `y` equals `0`. In thi
 
 Uses the reduce function from the inbuilt module `functools`. Also defines a method `spread` for javascript like spreading of lists.
 
-```python 
-
+```python
 
 from functools import reduce
 
@@ -32,7 +31,6 @@ def gcd(*args):
         return x if not y else gcd(y, x % y)
 
     return reduce((lambda x, y: _gcd(x, y)), numbers)
-
 ```
 
 
diff --git a/snippets/lcm.md b/snippets/lcm.md
index d0d7c0703..1085433d3 100644
--- a/snippets/lcm.md
+++ b/snippets/lcm.md
@@ -6,8 +6,7 @@ Use the `greatest common divisor (GCD)` formula and the fact that `lcm(x,y) = x
 
 Uses `reduce` function from the inbuilt module `functools`. Also defines a method `spread` for javascript like spreading of lists.
 
-```python 
-
+```python
 
 from functools import reduce
 
@@ -33,7 +32,6 @@ def lcm(*args):
         return x * y / _gcd(x, y)
 
     return reduce((lambda x, y: _lcm(x, y)), numbers)
-
 ```
 
 
diff --git a/snippets/max_n.md b/snippets/max_n.md
index 9fdb99b34..c1827aaf3 100644
--- a/snippets/max_n.md
+++ b/snippets/max_n.md
@@ -4,8 +4,7 @@ Returns the `n` maximum elements from the provided list. If `n` is greater than
 
 Use `list.sort()` combined with the `deepcopy` function from the inbuilt `copy` module to create a shallow clone of the list and sort it in ascending order and then use `list.reverse()` reverse it to make it descending order. Use `[:n]` to get the specified number of elements. Omit the second argument, `n`, to get a one-element array
 
-```python 
-
+```python
 
 from copy import deepcopy
 
@@ -15,7 +14,6 @@ def max_n(arr, n=1):
     numbers.sort()
     numbers.reverse()
     return numbers[:n]
-
 ```
 
 ```python
diff --git a/snippets/min_n.md b/snippets/min_n.md
index e854b06aa..69de68e37 100644
--- a/snippets/min_n.md
+++ b/snippets/min_n.md
@@ -4,8 +4,7 @@ Returns the `n` minimum elements from the provided list. If `n` is greater than
 
 Use `list.sort()` combined with the `deepcopy` function from the inbuilt `copy` module to create a shallow clone of the list and sort it in ascending order. Use `[:n]` to get the specified number of elements. Omit the second argument, `n`, to get a one-element array
 
-```python 
-
+```python
 
 from copy import deepcopy
 
@@ -14,7 +13,6 @@ def min_n(arr, n=1):
     numbers = deepcopy(arr)
     numbers.sort()
     return numbers[:n]
-
 ```
 
 ```python
diff --git a/snippets/shuffle.md b/snippets/shuffle.md
index 856695ec8..6fce8b819 100644
--- a/snippets/shuffle.md
+++ b/snippets/shuffle.md
@@ -6,8 +6,7 @@ Randomizes the order of the values of an list, returning a new list.
 
 Uses the [Fisher-Yates algorithm](https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle) to reorder the elements of the list.
 
-```python 
-
+```python
 
 from copy import deepcopy
 from random import randint
@@ -21,7 +20,6 @@ def shuffle(arr):
         i = randint(0, m)
         temp_arr[m], temp_arr[i] = temp_arr[i], temp_arr[m]
     return temp_arr
-
 ```
 
 ``` python
diff --git a/snippets/spread.md b/snippets/spread.md
index cc33d47e9..2eaf23f81 100644
--- a/snippets/spread.md
+++ b/snippets/spread.md
@@ -2,8 +2,7 @@
 
 Implements javascript's spread syntax as a function. Flattens the list(non-deep) and returns an list.
 
-```python 
-
+```python
 
 def spread(arg):
     ret = []
@@ -13,7 +12,6 @@ def spread(arg):
         else:
             ret.append(i)
     return ret
-
 ```
 
 
diff --git a/snippets/zip.md b/snippets/zip.md
index d49a02f33..9f168989f 100644
--- a/snippets/zip.md
+++ b/snippets/zip.md
@@ -6,8 +6,7 @@ Creates a list of elements, grouped based on the position in the original lists.
 
 Use `max` combined with `list comprehension` to get the length of the longest list in the arguments. Loops for `max_length` times grouping elements. If lengths of `lists` vary `fill_value` is used. By default `fill_value` is `None`.
 
-```python 
-
+```python
 
 def zip(*args, fillvalue=None):
     max_length = max([len(arr) for arr in args])
@@ -17,7 +16,6 @@ def zip(*args, fillvalue=None):
             args[k][i] if i < len(args[k]) else None for k in range(len(args))
         ])
     return result
-
 ```
 
 ``` python