Cody

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

Created by Srishti Saha in Community

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