



'''simple docstring'''
import math
import sys






def A__   (					UpperCAmelCase_							):
						if number != int(UpperCAmelCase_							):
												raise ValueError('the value of input must be a natural number'							)
						if number < 0:
												raise ValueError('the value of input must not be a negative number'							)
						if number == 0:
												return 1
						_UpperCamelCase :		str			    =       [-1] * (number + 1)
						_UpperCamelCase :		List[Any]			    =       0
						for i in range(1  ,  number + 1							):
												_UpperCamelCase :		Dict			    =       sys.maxsize
												_UpperCamelCase :		List[str]			    =       int(math.sqrt(UpperCAmelCase_							)							)
												for j in range(1  ,  root + 1							):
																		_UpperCamelCase :		Optional[int]			    =       1 + answers[i - (j**2)]
																		_UpperCamelCase :		List[Any]			    =       min(UpperCAmelCase_  ,  UpperCAmelCase_							)
												_UpperCamelCase :		Union[str, Any]			    =       answer
						return answers[number]


if __name__ == "__main__":
					import doctest

					doctest.testmod()







'''simple docstring'''
from torch import nn






def A__   (					UpperCAmelCase_							):
						if act_fn in ["swish", "silu"]:
												return nn.SiLU()
						elif act_fn == "mish":
												return nn.Mish()
						elif act_fn == "gelu":
												return nn.GELU()
						else:
												raise ValueError(f'Unsupported activation function: {act_fn}'							)


