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Functionality of 3D matrix in 1D matirx ??

+6 votes
238 views

Can someone help to write a function to give demonstrate the functionality of 3D matrix in 1D matrix.

Function Prototype:

void set (int value,int indexX,int indexY,int indexZ, int [] 1dArray); 
posted Oct 29, 2013 by Anuj Yadav

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Should not be in this way

for (int x = 0, k=0; x < X; x++)
  for (int y = 0; y < Y; y++)
     for (int z = 0; z < Z; z++)
        1dArray[k++] = value[x][y][z]

Though not understood your question correctly.

1 Answer

0 votes

Following pattern may be useful

Taking an example for 2D which can be enhanced for 3D and further

A(ij) = 1 2 3
4 5 6
7 8 9

R = elements in one row

B(x) = 1 2 3 4 5 6 7 8 9

x = (i * R) + j

answer Nov 6, 2013 by Pankaj Agarwal
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You have a 2D matrix. Only two ZEROs in matrix.
Find the path from 1st zero to 2nd zero with least sum.

1       6       8       9       0       3

4       9       -5      5       11      13

8       9       44      23      15      -20

7       9       7       -13     14      11      

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Answer

1       6       8       9       0  ----> 3
                                         |
4       9       -5      5       11      13
                                         |
8       9       44      23      15      -20
                                         |
7 <---- 9 <---- 7 <--- -13 <--- 14 <---  11     
|
0       16      23      31      16        7

67      5       4       23      21       19
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Given a matrix with 1s and 0s, please find the number of groups of 1s. A group is defined by horizontally or vertically adjacent 1s.

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