Cody

Problem 44687. basic matrix operations: rotate and find sum of diagonal elements of the resultant matrix

For given input matrix a, rotate it by 90 degrees and find the sum of the diagonals.

Example: Input:

a =
     1     2     3     4
     5     6     7     8
     8    10    12    -2
    -1    -3    -5    -7

Output is:

20

Solution Stats

85.71% Correct | 14.29% Incorrect
Last solution submitted on Feb 25, 2019