Problem 1850. Create a matrix with difference of each row of input matrix

Solution 2067540

Submitted on 23 Dec 2019 by Asif Newaz

This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

Test	Status	Code Input and Output
1	Pass	x = [1 2 3; 7 8 9; 10 40 60;] y_correct = [6 6 6;3 32 51; -9 -38 -57;] assert(isequal(MatDiff(x),y_correct)); x = 1 2 3 7 8 9 10 40 60 y_correct = 6 6 6 3 32 51 -9 -38 -57 x = 1 2 3 7 8 9 10 40 60 1 2 3 B = 6 6 6 3 32 51 -9 -38 -57
2	Pass	x = eye(3); y_correct = [ -1 1 0; 0 -1 1; 1 0 -1]; assert(isequal(MatDiff(x),y_correct)); x = 1 0 0 0 1 0 0 0 1 1 0 0 B = -1 1 0 0 -1 1 1 0 -1
3	Pass	x = repmat(7, 7, 7); y_correct = repmat(0, 7, 7); assert(isequal(MatDiff(x),y_correct)); x = 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 B = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
4	Pass	x = diag(1:4); y_correct = [ -1 2 0 0; 0 -2 3 0; 0 0 -3 4; 1 0 0 -4;] assert(isequal(MatDiff(x),y_correct)); y_correct = -1 2 0 0 0 -2 3 0 0 0 -3 4 1 0 0 -4 x = 1 0 0 0 0 2 0 0 0 0 3 0 0 0 0 4 1 0 0 0 B = -1 2 0 0 0 -2 3 0 0 0 -3 4 1 0 0 -4