ロト６の疑問
http://money4.2ch.net/test/read.cgi/loto/1163062359/521
「BOX買いしようと思います。
10個だと何通り買えますか？」
10Ｃ6 ＝ 10 × 9 × 8 × 7 × 6 × 5／（6 × 5 × 4 × 3 × 2 × 1） ＝ 210
「BOX買いしようと思います。
10個だと何通り買えますか？」
10Ｃ6 ＝ 10 × 9 × 8 × 7 × 6 × 5／（6 × 5 × 4 × 3 × 2 × 1） ＝ 210
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a b c d e f a b c d e g a b c d e h a b c d e i a b c d e j a b c d f g a b c d f h
a b c d f i a b c d f j a b c d g h a b c d g i a b c d g j a b c d h i a b c d h j
a b c d i j a b c e f g a b c e f h a b c e f i a b c e f j a b c e g h a b c e g i
a b c e g j a b c e h i a b c e h j a b c e i j a b c f g h a b c f g i a b c f g j
a b c f h i a b c f h j a b c f i j a b c g h i a b c g h j a b c g i j a b c h i j
a b d e f g a b d e f h a b d e f i a b d e f j a b d e g h a b d e g i a b d e g j
a b d e h i a b d e h j a b d e i j a b d f g h a b d f g i a b d f g j a b d f h i
a b d f h j a b d f i j a b d g h i a b d g h j a b d g i j a b d h i j a b e f g h
a b e f g i a b e f g j a b e f h i a b e f h j a b e f i j a b e g h i a b e g h j
a b e g i j a b e h i j a b f g h i a b f g h j a b f g i j a b f h i j a b g h i j
a c d e f g a c d e f h a c d e f i a c d e f j a c d e g h a c d e g i a c d e g j
a c d e h i a c d e h j a c d e i j a c d f g h a c d f g i a c d f g j a c d f h i
a c d f h j a c d f i j a c d g h i a c d g h j a c d g i j a c d h i j a c e f g h
a c e f g i a c e f g j a c e f h i a c e f h j a c e f i j a c e g h i a c e g h j
a c e g i j a c e h i j a c f g h i a c f g h j a c f g i j a c f h i j a c g h i j
a d e f g h a d e f g i a d e f g j a d e f h i a d e f h j a d e f i j a d e g h i
a d e g h j a d e g i j a d e h i j a d f g h i a d f g h j a d f g i j a d f h i j
a d g h i j a e f g h i a e f g h j a e f g i j a e f h i j a e g h i j a f g h i j
b c d e f g b c d e f h b c d e f i b c d e f j b c d e g h b c d e g i b c d e g j
b c d e h i b c d e h j b c d e i j b c d f g h b c d f g i b c d f g j b c d f h i
b c d f h j b c d f i j b c d g h i b c d g h j b c d g i j b c d h i j b c e f g h
b c e f g i b c e f g j b c e f h i b c e f h j b c e f i j b c e g h i b c e g h j
b c e g i j b c e h i j b c f g h i b c f g h j b c f g i j b c f h i j b c g h i j
b d e f g h b d e f g i b d e f g j b d e f h i b d e f h j b d e f i j b d e g h i
b d e g h j b d e g i j b d e h i j b d f g h i b d f g h j b d f g i j b d f h i j
b d g h i j b e f g h i b e f g h j b e f g i j b e f h i j b e g h i j b f g h i j
c d e f g h c d e f g i c d e f g j c d e f h i c d e f h j c d e f i j c d e g h i
c d e g h j c d e g i j c d e h i j c d f g h i c d f g h j c d f g i j c d f h i j
c d g h i j c e f g h i c e f g h j c e f g i j c e f h i j c e g h i j c f g h i j
d e f g h i d e f g h j d e f g i j d e f h i j d e g h i j d f g h i j e f g h i j
a b c d f i a b c d f j a b c d g h a b c d g i a b c d g j a b c d h i a b c d h j
a b c d i j a b c e f g a b c e f h a b c e f i a b c e f j a b c e g h a b c e g i
a b c e g j a b c e h i a b c e h j a b c e i j a b c f g h a b c f g i a b c f g j
a b c f h i a b c f h j a b c f i j a b c g h i a b c g h j a b c g i j a b c h i j
a b d e f g a b d e f h a b d e f i a b d e f j a b d e g h a b d e g i a b d e g j
a b d e h i a b d e h j a b d e i j a b d f g h a b d f g i a b d f g j a b d f h i
a b d f h j a b d f i j a b d g h i a b d g h j a b d g i j a b d h i j a b e f g h
a b e f g i a b e f g j a b e f h i a b e f h j a b e f i j a b e g h i a b e g h j
a b e g i j a b e h i j a b f g h i a b f g h j a b f g i j a b f h i j a b g h i j
a c d e f g a c d e f h a c d e f i a c d e f j a c d e g h a c d e g i a c d e g j
a c d e h i a c d e h j a c d e i j a c d f g h a c d f g i a c d f g j a c d f h i
a c d f h j a c d f i j a c d g h i a c d g h j a c d g i j a c d h i j a c e f g h
a c e f g i a c e f g j a c e f h i a c e f h j a c e f i j a c e g h i a c e g h j
a c e g i j a c e h i j a c f g h i a c f g h j a c f g i j a c f h i j a c g h i j
a d e f g h a d e f g i a d e f g j a d e f h i a d e f h j a d e f i j a d e g h i
a d e g h j a d e g i j a d e h i j a d f g h i a d f g h j a d f g i j a d f h i j
a d g h i j a e f g h i a e f g h j a e f g i j a e f h i j a e g h i j a f g h i j
b c d e f g b c d e f h b c d e f i b c d e f j b c d e g h b c d e g i b c d e g j
b c d e h i b c d e h j b c d e i j b c d f g h b c d f g i b c d f g j b c d f h i
b c d f h j b c d f i j b c d g h i b c d g h j b c d g i j b c d h i j b c e f g h
b c e f g i b c e f g j b c e f h i b c e f h j b c e f i j b c e g h i b c e g h j
b c e g i j b c e h i j b c f g h i b c f g h j b c f g i j b c f h i j b c g h i j
b d e f g h b d e f g i b d e f g j b d e f h i b d e f h j b d e f i j b d e g h i
b d e g h j b d e g i j b d e h i j b d f g h i b d f g h j b d f g i j b d f h i j
b d g h i j b e f g h i b e f g h j b e f g i j b e f h i j b e g h i j b f g h i j
c d e f g h c d e f g i c d e f g j c d e f h i c d e f h j c d e f i j c d e g h i
c d e g h j c d e g i j c d e h i j c d f g h i c d f g h j c d f g i j c d f h i j
c d g h i j c e f g h i c e f g h j c e f g i j c e f h i j c e g h i j c f g h i j
d e f g h i d e f g h j d e f g i j d e f h i j d e g h i j d f g h i j e f g h i j
たとえば
a → 01
b → 02
c → 03
d → 04
e → 05
f → 06
のように置換
a → 01
b → 02
c → 03
d → 04
e → 05
f → 06
のように置換