Problem 1699. Find last zero for each column

Solution 1252364

Submitted on 16 Aug 2017 by Ilias Patelakis

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Test	Status	Code Input and Output
1	Pass	a = 0; z_correct = 1; assert(isequal(lastzerorow(a),z_correct))
2	Pass	a = 1; z_correct = 0; assert(isequal(lastzerorow(a),z_correct))
3	Pass	a = randi(1000,1000,1); z_correct = 0; assert(isequal(lastzerorow(a),z_correct))
4	Pass	a = [0;1;0;2;0;3;0;4;0;5;0;6;0;7;0;8;0;9;0;10]; z_correct = 19; assert(isequal(lastzerorow(a),z_correct))
5	Pass	n = randi(1000); a = tril(ones(n)); z_correct = 0:n-1; assert(isequal(lastzerorow(a),z_correct))
6	Pass	n = randi(1000); a = tril(ones(n),-1); z_correct = 1:n; assert(isequal(lastzerorow(a),z_correct))
7	Pass	n = randi(1000); d = randi(n-1); a = tril(ones(n),-d); z_correct = min((0:n-1)+d,n); assert(isequal(lastzerorow(a),z_correct))
8	Pass	a = magic(10)-1; z_correct = [0 0 1 0 0 0 0 0 0 0]; assert(isequal(lastzerorow(a),z_correct))
9	Pass	a = [0 0 9 0; 0 0 1 8; 0 0 4 0; 0 0 2 3; 0 6 7 5]; z_correct = [5 4 0 3]; assert(isequal(lastzerorow(a),z_correct))
10	Pass	a = [0 0 0 0 -4 0 0 0 0; 0 0 0 -3 -3 -3 0 0 0; 0 0 -2 3 -2 2 2 0 0; 0 -1 2 -1 1 -1 -1 1 0]; z_correct = [4 3 2 1 0 1 2 3 4]; assert(isequal(lastzerorow(a),z_correct))