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fix deep_flatten

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This commit is contained in:
Rohit Tanwar
2018-01-21 10:56:40 +05:30
parent e75808084f
commit 20a21a3551
5 changed files with 20 additions and 29 deletions
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27
README.md
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@ -107,19 +107,13 @@ def spread(arg):
ret.append(i) ret.append(i)
return ret return ret
def deep_flatten(arr):
def deep_flatten(arr):
result = [] result = []
result.extend(spread(list(map(lambda x : deep(x) if type(x) == list else x,arr)))) result.extend(
spread(list(map(lambda x: deep(x) if type(x) == list else x, arr))))
return result return result
``` ```
```python ```python
@ -288,7 +282,7 @@ from random import randint
def shuffle(arr): def shuffle(arr):
temp_arr = deepcopy(arr) temp_arr = deepcopy(arr)
m = len(temp_arr) m = len(temp_arr)
while(m): while (m):
m -= 1 m -= 1
i = randint(0, m) i = randint(0, m)
temp_arr[m], temp_arr[i] = temp_arr[i], temp_arr[m] temp_arr[m], temp_arr[i] = temp_arr[i], temp_arr[m]
@ -335,16 +329,17 @@ def zip(*args, fillvalue=None):
max_length = max([len(arr) for arr in args]) max_length = max([len(arr) for arr in args])
result = [] result = []
for i in range(max_length): for i in range(max_length):
result.append([args[k][i] if i < len(args[k]) result.append([
else None for k in range(len(args))]) args[k][i] if i < len(args[k]) else None for k in range(len(args))
])
return result return result
``` ```
``` python ``` python
zip(['a', 'b'], [1, 2], [True, False]); // [['a', 1, True], ['b', 2, False]] zip(['a', 'b'], [1, 2], [True, False]) // [['a', 1, True], ['b', 2, False]]
zip(['a'], [1, 2], [True, False]); // [['a', 1, True], [None, 2, False]] zip(['a'], [1, 2], [True, False]) // [['a', 1, True], [None, 2, False]]
zip(['a'], [1, 2], [True, False], fill_value = '_'); // [['a', 1, True], ['_', 2, False]] zip(['a'], [1, 2], [True, False], fill_value = '_') // [['a', 1, True], ['_', 2, False]]
``` ```
## Credits ## Credits

1
scripts/lint.py
View File

@ -1,4 +1,5 @@
import autopep8 import autopep8
from yapf.yapflib.yapf_api import FormatCode
import re import re
import os import os
files = os.listdir('snippets') files = os.listdir('snippets')

14
snippets/deep_flatten.md
View File

@ -16,19 +16,13 @@ def spread(arg):
ret.append(i) ret.append(i)
return ret return ret
def deep_flatten(arr):
def deep_flatten(arr):
result = [] result = []
result.extend(spread(list(map(lambda x : deep(x) if type(x) == list else x,arr)))) result.extend(
spread(list(map(lambda x: deep(x) if type(x) == list else x, arr))))
return result return result
``` ```
```python ```python

2
snippets/shuffle.md
View File

@ -14,7 +14,7 @@ from random import randint
def shuffle(arr): def shuffle(arr):
temp_arr = deepcopy(arr) temp_arr = deepcopy(arr)
m = len(temp_arr) m = len(temp_arr)
while(m): while (m):
m -= 1 m -= 1
i = randint(0, m) i = randint(0, m)
temp_arr[m], temp_arr[i] = temp_arr[i], temp_arr[m] temp_arr[m], temp_arr[i] = temp_arr[i], temp_arr[m]

5
snippets/zip.md
View File

@ -11,8 +11,9 @@ def zip(*args, fillvalue=None):
max_length = max([len(arr) for arr in args]) max_length = max([len(arr) for arr in args])
result = [] result = []
for i in range(max_length): for i in range(max_length):
result.append([args[k][i] if i < len(args[k]) result.append([
else None for k in range(len(args))]) args[k][i] if i < len(args[k]) else None for k in range(len(args))
])
return result return result
``` ```