數 - (42) 韓信點兵 ( 2 )

2010-07-22 5:53 am
( a + 4 ) / 5 餘 2

3a / 7 餘 5

( 2a - 5 ) / 11 餘 8

求 1000 以內 a 的可能值

回答 (2)

2010-07-22 5:20 pm
✔ 最佳答案
We will use the Chinese Remainder Theorem and the Extended Euclidean Algorithm extensively for this problem:

圖片參考:http://i187.photobucket.com/albums/x22/cshung/7010072101887.png
2010-07-22 7:07 am
298,683.............


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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100721000051KK01887

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