不可以重複 比如 11******* 123456789和987654321這樣的也不行 幫算一下 有多少種

要是能算出都是什麼就更好了。。。。100分送上!!!

14個數裡任選9個數字 能有多少種組合方法啊??wandeshuai2013-03-31

解答: 我以為這題是一般意義上組合問題最為合理。如果是這樣,一共有C(14,9)=2002種。您還需要的是具體結果,我得出的具體組合如下: 123456789,123679101114,13456781014,1458910111214,2367911121314, 1234567810,123679101213,13456781112,1458910111314,23671011121314, 1234567811,123679101214,13456781113,1458910121314,2368910111213, 1234567812,123679101314,13456781114,1458911121314,2368910111214, 1234567813,123679111213,13456781213,14581011121314,2368910111314, 1234567814,123679111214,13456781214,14591011121314,2368910121314, 1234567910,123679111314,13456781314,146789101112,2368911121314, 1234567911,123679121314,13456791011,146789101113,23681011121314, 1234567912,1236710111213,13456791012,146789101114,23691011121314, 1234567913,1236710111214,13456791013,146789101213,2378910111213, 1234567914,1236710111314,13456791014,146789101214,2378910111214, 12345671011,1236710121314,13456791112,146789101314,2378910111314, 12345671012,1236711121314,13456791113,146789111213,2378910121314, 12345671013,123689101112,13456791114,146789111214,2378911121314, 12345671014,123689101113,13456791213,146789111314,23781011121314, 12345671112,123689101114,13456791214,146789121314,23791011121314, 12345671113,123689101213,13456791314,1467810111213,23891011121314, 12345671114,123689101214,134567101112,1467810111214,24567891011, 12345671213,123689101314,134567101113,1467810111314,24567891012, 12345671214,123689111213,134567101114,1467810121314,24567891013, 12345671314,123689111214,134567101213,1467811121314,24567891014, 1234568910,123689111314,134567101214,1467910111213,24567891112, 1234568911,123689121314,134567101314,1467910111214,24567891113, 1234568912,1236810111213,134567111213,1467910111314,24567891114, 1234568913,1236810111214,134567111214,1467910121314,24567891213, 1234568914,1236810111314,134567111314,1467911121314,24567891214, 12345681011,1236810121314,134567121314,14671011121314,24567891314, 12345681012,1236811121314,13456891011,1468910111213,245678101112, 12345681013,1236910111213,13456891012,1468910111214,245678101113, 12345681014,1236910111214,13456891013,1468910111314,245678101114, 12345681112,1236910111314,13456891014,1468910121314,245678101213, 12345681113,1236910121314,13456891112,1468911121314,245678101214, 12345681114,1236911121314,13456891113,14681011121314,245678101314, 12345681213,12361011121314,13456891114,14691011121314,245678111213, 12345681214,123789101112,13456891213,1478910111213,245678111214, 12345681314,123789101113,13456891214,1478910111214,245678111314, 12345691011,123789101114,13456891314,1478910111314,245678121314, 12345691012,123789101213,134568101112,1478910121314,245679101112, 12345691013,123789101214,134568101113,1478911121314,245679101113, 12345691014,123789101314,134568101114,14781011121314,245679101114, 12345691112,123789111213,134568101213,14791011121314,245679101213, 12345691113,123789111214,134568101214,14891011121314,245679101214, 12345691114,123789111314,134568101314,156789101112,245679101314, 12345691213,123789121314,134568111213,156789101113,245679111213, 12345691214,1237810111213,134568111214,156789101114,245679111214, 12345691314,1237810111214,134568111314,156789101213,245679111314, 123456101112,1237810111314,134568121314,156789101214,245679121314, 123456101113,1237810121314,134569101112,156789101314,2456710111213, 123456101114,1237811121314,134569101113,156789111213,2456710111214, 123456101213,1237910111213,134569101114,156789111214,2456710111314, 123456101214,1237910111214,134569101213,156789111314,2456710121314, 123456101314,1237910111314,134569101214,156789121314,2456711121314, 123456111213,1237910121314,134569101314,1567810111213,245689101112, 123456111214,1237911121314,134569111213,1567810111214,245689101113, 123456111314,12371011121314,134569111214,1567810111314,245689101114, 123456121314,1238910111213,134569111314,1567810121314,245689101213, 。。。 。。。 。。。 詳見附錄。附件:14C9。doc