builtins.py 4.8 KB

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  1. import sys as _sys
  2. def print(*args, sep=' ', end='\n'):
  3. s = sep.join([str(i) for i in args])
  4. _sys.stdout.write(s + end)
  5. def round(x, ndigits=0):
  6. assert ndigits >= 0
  7. if ndigits == 0:
  8. return int(x + 0.5) if x >= 0 else int(x - 0.5)
  9. if x >= 0:
  10. return int(x * 10**ndigits + 0.5) / 10**ndigits
  11. else:
  12. return int(x * 10**ndigits - 0.5) / 10**ndigits
  13. def abs(x):
  14. return -x if x < 0 else x
  15. def max(a, b):
  16. return a if a > b else b
  17. def min(a, b):
  18. return a if a < b else b
  19. def all(iterable):
  20. for i in iterable:
  21. if not i:
  22. return False
  23. return True
  24. def any(iterable):
  25. for i in iterable:
  26. if i:
  27. return True
  28. return False
  29. def enumerate(iterable, start=0):
  30. n = start
  31. for elem in iterable:
  32. yield n, elem
  33. n += 1
  34. def sum(iterable):
  35. res = 0
  36. for i in iterable:
  37. res += i
  38. return res
  39. def map(f, iterable):
  40. for i in iterable:
  41. yield f(i)
  42. def filter(f, iterable):
  43. for i in iterable:
  44. if f(i):
  45. yield i
  46. def zip(a, b):
  47. for i in range(min(len(a), len(b))):
  48. yield (a[i], b[i])
  49. def reversed(iterable):
  50. a = list(iterable)
  51. a.reverse()
  52. return a
  53. def sorted(iterable, reverse=False):
  54. a = list(iterable)
  55. a.sort(reverse=reverse)
  56. return a
  57. ##### str #####
  58. str.__mul__ = lambda self, n: ''.join([self for _ in range(n)])
  59. def str@split(self, sep):
  60. if sep == "":
  61. return list(self)
  62. res = []
  63. i = 0
  64. while i < len(self):
  65. if self[i:i+len(sep)] == sep:
  66. res.append(self[:i])
  67. self = self[i+len(sep):]
  68. i = 0
  69. else:
  70. i += 1
  71. res.append(self)
  72. return res
  73. def str@format(self, *args):
  74. if '{}' in self:
  75. for i in range(len(args)):
  76. self = self.replace('{}', str(args[i]), 1)
  77. else:
  78. for i in range(len(args)):
  79. self = self.replace('{'+str(i)+'}', str(args[i]))
  80. return self
  81. def str@strip(self, chars=None):
  82. chars = chars or ' \t\n\r'
  83. i = 0
  84. while i < len(self) and self[i] in chars:
  85. i += 1
  86. j = len(self) - 1
  87. while j >= 0 and self[j] in chars:
  88. j -= 1
  89. return self[i:j+1]
  90. ##### list #####
  91. list.__repr__ = lambda self: '[' + ', '.join([repr(i) for i in self]) + ']'
  92. tuple.__repr__ = lambda self: '(' + ', '.join([repr(i) for i in self]) + ')'
  93. list.__json__ = lambda self: '[' + ', '.join([i.__json__() for i in self]) + ']'
  94. tuple.__json__ = lambda self: '[' + ', '.join([i.__json__() for i in self]) + ']'
  95. def __qsort(a: list, L: int, R: int):
  96. if L >= R: return;
  97. mid = a[(R+L)//2];
  98. i, j = L, R
  99. while i<=j:
  100. while a[i]<mid: i+=1
  101. while a[j]>mid: j-=1
  102. if i<=j:
  103. a[i], a[j] = a[j], a[i]
  104. i+=1
  105. j-=1
  106. __qsort(a, L, j)
  107. __qsort(a, i, R)
  108. def list@sort(self, reverse=False):
  109. __qsort(self, 0, len(self)-1)
  110. if reverse:
  111. self.reverse()
  112. def list@remove(self, value):
  113. for i in range(len(self)):
  114. if self[i] == value:
  115. del self[i]
  116. return
  117. value = repr(value)
  118. raise ValueError(f'{value} is not in list')
  119. def list@index(self, value):
  120. for i in range(len(self)):
  121. if self[i] == value:
  122. return i
  123. value = repr(value)
  124. raise ValueError(f'{value} is not in list')
  125. def list@pop(self, i=-1):
  126. res = self[i]
  127. del self[i]
  128. return res
  129. def list@__eq__(self, other):
  130. if type(self) is not type(other):
  131. return False
  132. if len(self) != len(other):
  133. return False
  134. for i in range(len(self)):
  135. if self[i] != other[i]:
  136. return False
  137. return True
  138. tuple.__eq__ = list.__eq__
  139. list.__ne__ = lambda self, other: not self.__eq__(other)
  140. tuple.__ne__ = lambda self, other: not self.__eq__(other)
  141. def list@count(self, x):
  142. res = 0
  143. for i in self:
  144. if i == x:
  145. res += 1
  146. return res
  147. tuple.count = list.count
  148. def list@__contains__(self, item):
  149. for i in self:
  150. if i == item:
  151. return True
  152. return False
  153. tuple.__contains__ = list.__contains__
  154. class property:
  155. def __init__(self, fget, fset=None):
  156. self.fget = fget
  157. self.fset = fset
  158. if hasattr(fget, '__doc__'):
  159. self.__doc__ = fget.__doc__
  160. def __get__(self, obj):
  161. return self.fget(obj)
  162. def __set__(self, obj, value):
  163. if self.fset is None:
  164. raise AttributeError("readonly property")
  165. self.fset(obj, value)
  166. class staticmethod:
  167. def __init__(self, f):
  168. self.f = f
  169. def __get__(self, obj):
  170. return self.f
  171. def __call__(self, *args):
  172. return self.f(*args)
  173. def type@__repr__(self):
  174. return "<class '" + self.__name__ + "'>"
  175. def help(obj):
  176. if hasattr(obj, '__func__'):
  177. obj = obj.__func__
  178. if hasattr(obj, '__doc__'):
  179. print(obj.__doc__)
  180. else:
  181. print("No docstring found")