Problem 2650. Kurchan 4x4 - Optimal score
Related to Problem 1646, but bigger. Technically, all you need to do for this Cody problem is input a 4x4 matrix containing the numbers 1-16. However, your score will be the Kurchan value of the matrix, which is defined as the difference between the maximum and minimum of the products for the rows, columns, diagonals, and anti-diagonals of the matrix.
For example: Magic(4) is
16 2 3 13 5 11 10 8 9 7 6 12 4 14 15 1
The row products are:
- 16*2*3*13=1248
- 5*11*10*8=4400
- 9*7*6*12=4536
- 4*14*15*1=840
The column products are:
- 16*9*5*4=2880
- 2*11*7*14=2156
- 3*10*6*15=2700
- 13*8*12*1=1248
The diagonal products are:
- 16*11*6*1=1056
- 2*10*12*4=960
- 3*8*9*14=3024
- 13*5*7*15=6825
The anti-diagonal products are:
- 13*10*7*4=3640
- 3*11*9*1=297
- 2*5*12*15=1800
- 16*8*6*14=10752
The highest value is 10752, while the lowest is 297. Therefore, the score of this matrix is 10455. Your Cody score will be the Kurchan score of your matrix.
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2 Comments
And do we seek to obtain a higher or lower score? what is the goal?
I went for the minimum score that I was able to find at least, and
found 3724. Moreover, I submitted the algorithm and the hardcoded solution.
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