[請益] Warshall Algorithm
看了原文書上對Warshall Algorithm的解釋 還是不太懂他的意思,
只知道這是用來算最短距離的
下面有練習題
Find the matrices W0 W1 W2 W3 and W4
The matrix W4 is the transtive closure of R
W0 = (1,4) (2,1) (2,3) (3,1) (3,4) (4,3)
ANS w1 = (1,4) (2,1) (2,3) (2,4) (3,1) (3,4) (4,3)
w2 = w1
w3 = (1,4) (2,1) (2,3) (2,4) (3,1) (3,4) (4,1) (4,3) (4,4)
w4 = (1,4) (2,1) (2,3) (2,4) (3,1) (3,3) (3,4) (4,1) (4,3) (4,4)
(原圖片是Matrix 抱歉小弟不會用PTT畫圖)
可以請高手大大用這題來解釋一下他是怎麼算出來的嗎?
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06/07 23:16, , 1F
06/07 23:16, 1F