builtins.py 4.1 KB

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  1. def print(*args, sep=' ', end='\n'):
  2. s = sep.join([str(i) for i in args])
  3. __sys_stdout_write(s + end)
  4. def round(x, ndigits=0):
  5. assert ndigits >= 0
  6. if ndigits == 0:
  7. return x >= 0 ? int(x + 0.5) : int(x - 0.5)
  8. if x >= 0:
  9. return int(x * 10**ndigits + 0.5) / 10**ndigits
  10. else:
  11. return int(x * 10**ndigits - 0.5) / 10**ndigits
  12. def isinstance(obj, cls):
  13. assert type(cls) is type
  14. obj_t = type(obj)
  15. while obj_t is not None:
  16. if obj_t is cls:
  17. return True
  18. obj_t = obj_t.__base__
  19. return False
  20. def abs(x):
  21. return x < 0 ? -x : x
  22. def max(a, b):
  23. return a > b ? a : b
  24. def min(a, b):
  25. return a < b ? a : b
  26. def all(iterable):
  27. for i in iterable:
  28. if not i:
  29. return False
  30. return True
  31. def any(iterable):
  32. for i in iterable:
  33. if i:
  34. return True
  35. return False
  36. def enumerate(iterable, start=0):
  37. n = start
  38. for elem in iterable:
  39. yield n, elem
  40. n += 1
  41. def sum(iterable):
  42. res = 0
  43. for i in iterable:
  44. res += i
  45. return res
  46. def map(f, iterable):
  47. for i in iterable:
  48. yield f(i)
  49. def zip(a, b):
  50. for i in range(min(len(a), len(b))):
  51. yield (a[i], b[i])
  52. def reversed(iterable):
  53. a = list(iterable)
  54. a.reverse()
  55. return a
  56. def sorted(iterable, reverse=False):
  57. a = list(iterable)
  58. a.sort(reverse=reverse)
  59. return a
  60. ##### str #####
  61. str.__mul__ = lambda self, n: ''.join([self for _ in range(n)])
  62. def str::split(self, sep):
  63. if sep == "":
  64. return list(self)
  65. res = []
  66. i = 0
  67. while i < len(self):
  68. if self[i:i+len(sep)] == sep:
  69. res.append(self[:i])
  70. self = self[i+len(sep):]
  71. i = 0
  72. else:
  73. i += 1
  74. res.append(self)
  75. return res
  76. def str::index(self, sub):
  77. for i in range(len(self)):
  78. if self[i:i+len(sub)] == sub:
  79. return i
  80. return -1
  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.__new__ = lambda obj: [i for i in obj]
  92. list.__repr__ = lambda self: '[' + ', '.join([repr(i) for i in self]) + ']'
  93. tuple.__repr__ = lambda self: '(' + ', '.join([repr(i) for i in self]) + ')'
  94. list.__json__ = lambda self: '[' + ', '.join([i.__json__() for i in self]) + ']'
  95. tuple.__json__ = lambda self: '[' + ', '.join([i.__json__() for i in self]) + ']'
  96. def __qsort(a: list, L: int, R: int):
  97. if L >= R: return;
  98. mid = a[(R+L)//2];
  99. i, j = L, R
  100. while i<=j:
  101. while a[i]<mid: i+=1
  102. while a[j]>mid: j-=1
  103. if i<=j:
  104. a[i], a[j] = a[j], a[i]
  105. i+=1
  106. j-=1
  107. __qsort(a, L, j)
  108. __qsort(a, i, R)
  109. def list::sort(self, reverse=False):
  110. __qsort(self, 0, len(self)-1)
  111. if reverse:
  112. self.reverse()
  113. def list::extend(self, other):
  114. for i in other:
  115. self.append(i)
  116. def list::remove(self, value):
  117. for i in range(len(self)):
  118. if self[i] == value:
  119. del self[i]
  120. return True
  121. return False
  122. def list::index(self, value):
  123. for i in range(len(self)):
  124. if self[i] == value:
  125. return i
  126. return -1
  127. def list::pop(self, i=-1):
  128. res = self[i]
  129. del self[i]
  130. return res
  131. def list::__eq__(self, other):
  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):
  156. self.fget = fget
  157. def __get__(self, obj):
  158. return self.fget(obj)