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nbonacci sequence (nボナッチ数列)の計算及び出力のためのPython3のコード例。
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#!/usr/bin/env python3 | |
# | |
# See https://sidestory.pandanote.info/nbonacci.html for details. | |
# | |
import sys | |
import re | |
if (len(sys.argv) < 3 or re.match(r'^[1-9]\d*$',sys.argv[1]) == None or re.match(r'^[1-9]\d*$',sys.argv[2]) == None): | |
print("Usage: nbonacci.py <number of terms to compute the next term> <number of terms to calculate>") | |
sys.exit(1) | |
ac = int(sys.argv[1]) | |
an = int(sys.argv[2]) | |
a = [0] * (ac-1) | |
a.append(1) | |
i = 0 | |
while (i < an): | |
if i < ac: | |
print("{0:d}".format(a[i])) | |
else: | |
next = sum(a) | |
print("{0:d}".format(next)) | |
a.pop(0) | |
a.append(next) | |
i += 1 |
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