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メモ:n桁の2進数の数をまとめて作成

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Last updated at Posted at 2019-10-06

プログラミングコンテストで使った処理。
実行環境は、Python3.4。

プログラム1

N = 3  # 桁数

for i in range(2 ** N):
    x = format(i, '0{}b'.format(N))
    print(x)

# 実行結果
# 000
# 001
# 010
# 011
# 100
# 101
# 110
# 111

プログラム2

for i in range(2):
    for j in range(2):
        for k in range(2):
            s = str(i) + str(j) + str(k)
            print(s)

# 実行結果
# 000
# 001
# 010
# 011
# 100
# 101
# 110
# 111

もっといいやり方がありそう。

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