All pairs shortest paths, Data Structure & Algorithms

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N = number of rows of the graph

D[i[j] = C[i][j]

For k from 1 to n

Do for i = 1 to n

Do for j = 1 to n

D[i[j]= minimum( d ij (k-1) ,d ik(k-1) +d kj(k-1)

Enddo

Enddo

Enddo

Where

 d ij (k-1) = minimum path from i to j via k-1 intermediate vertices

d ik(k-1) = minimum path from j to k via k-1 intermediate vertices

d kj(k-1)  = minimum path from k to j via k-1 intermediate vertices


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