46 lines
1.9 KiB
Python
46 lines
1.9 KiB
Python
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from util import read_file, write_file, append_file
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from sys import maxsize
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class primenumbers:
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def __init__(self, cache: str = "./cache/primenumbers/") -> None:
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self.p_last_index : int
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self.p_current_index : int
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self.p_current_number: int
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self.p_cache = cache
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self.p_last_index = int(read_file(self.p_cache+"last_index")[0])
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self.p_current_index = self.p_last_index + 1
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self.p_current_number = int(read_file(self.p_cache+str(self.p_last_index))[0])
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if self.p_current_number == maxsize:
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print("Max int size reached!")
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exit()
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self.p_current_number += 1
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print(f"Last index : {self.p_last_index}")
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print(f"Current index : {self.p_current_index}")
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print(f"Current number : {self.p_current_number}")
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def generate(self, iterations: int = -1):
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print(f"Generating {iterations} primenumbers:")
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iteration: int = 0
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while(iterations == -1 or iteration < iterations):
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is_primenumber = True
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for i in range(1, self.p_current_index):
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if self.check_modulo(self.p_current_number, int(read_file(self.p_cache+str(i))[0])):
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is_primenumber = False
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break
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if is_primenumber:
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print(f"\nPrimenumber found: {self.p_current_number}\n")
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write_file(self.p_cache+str(self.p_current_index), str(self.p_current_number))
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self.p_last_index = self.p_current_index
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write_file(self.p_cache+"last_index", str(self.p_last_index))
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self.p_current_index += 1
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if self.p_current_number == maxsize:
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print("Max int size reached!")
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break
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self.p_current_number += 1
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iteration += 1
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def check_modulo(self, a: int, b: int) -> bool:
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return a % b == 0
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