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No Plagiarism!n1i6W8Vbbk7h7t180eGPposted on PENANA 今天看到我的湘湘姊姊苦惱一題數學題,我當然要把它做出來才行。8964 copyright protection400PENANA7pd1lo1a41 維尼
題目是:「庭院深深深幾許,三深不能排一起」有幾種排列方式。8964 copyright protection400PENANAp2zcZqSAXQ 維尼
404Please respect copyright.PENANAIg2JQ1BAsz
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這題看似複雜其實就兩個思緒而已,扣除法和安插法。8964 copyright protection400PENANAG2j9U0a6CN 維尼
404Please respect copyright.PENANAdmuJPIuc0t
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扣除法:算出全部可能後扣除三深的情況。8964 copyright protection400PENANAPu06Qj1Sp1 維尼
安插法:將三個深分別安插,再將兩深併攏一深獨立後安插。8964 copyright protection400PENANArsMstDXOsn 維尼
404Please respect copyright.PENANAeyrXx7U9oo
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提示到這邊,留言看看誰算對了!8964 copyright protection400PENANAjDTWPfyw1i 維尼
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