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fib.py
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fib.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @File : fib.py
# @Date : 2019-02-15
# @Author : luyang(luyang@novogene.com)
import numpy as np
from prettytable import PrettyTable
def fib(month, produce, young):
rabbits = np.zeros([month, 2])
# 第一个月的起始状况,1对young,0对mature
rabbits[0, 0] = young
rabbits[0, 1] = 0
for i in range(1, month):
# 次月young <- 上月mature * produce
rabbits[i, 0] = produce * rabbits[i - 1, 1]
# 次月mature <- 上月young + 上月mature
rabbits[i, 1] = rabbits[i - 1].sum()
# 返回每个月的状况
return rabbits
def main():
file = 'input/rosalind_fib.txt'
with open(file) as f:
line = f.readline()
young = 1
month = int(line.split()[0])
produce = int(line.split()[1])
rabbits = fib(month, produce, young)
pt = PrettyTable(['month', 'young', 'mature', 'total'])
for i in range(month):
pt.add_row([i + 1, rabbits[i, 0], rabbits[i, 1], rabbits[i].sum()])
print(pt)
if __name__ == "__main__":
main()