Cody

# Problem 1699. Find last zero for each column

Solution 2867222

Submitted on 22 Aug 2020 by VENKATESH VISHNURAM
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### Test Suite

Test Status Code Input and Output
1   Pass
a = 0; z_correct = 1; assert(isequal(lastzerorow(a),z_correct))

m = 1 n = 1 z = 1

2   Pass
a = 1; z_correct = 0; assert(isequal(lastzerorow(a),z_correct))

m = 1 n = 1

3   Pass
a = randi(1000,1000,1); z_correct = 0; assert(isequal(lastzerorow(a),z_correct))

m = 1000 n = 1

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))

m = 20 n = 1 z = 19

5   Pass
n = randi(1000); a = tril(ones(n)); z_correct = 0:n-1; assert(isequal(lastzerorow(a),z_correct))

m = 604 n = 604 z = 0 1 z = 0 1 2 z = 0 1 2 3 z = 0 1 2 3 4 z = 0 1 2 3 4 5 z = 0 1 2 3 4 5 6 z = 0 1 2 3 4 5 6 7 z = 0 1 2 3 4 5 6 7 8 z = 0 1 2 3 4 5 6 7 8 9 z = 0 1 2 3 4 5 6 7 8 9 10 z = 0 1 2 3 4 5 6 7 8 9 10 11 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 z = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Column 31 30 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 32 30 31 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 33 30 31 32 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 34 30 31 32 33 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 35 30 31 32 33 34 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 36 30 31 32 33 34 35 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 37 30 31 32 33 34 35 36 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 38 30 31 32 33 34 35 36 37 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 39 30 31 32 33 34 35 36 37 38 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 40 30 31 32 33 34 35 36 37 38 39 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 41 30 31 32 33 34 35 36 37 38 39 40 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 42 30 31 32 33 34 35 36 37 38 39 40 41 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 43 30 31 32 33 34 35 36 37 38 39 40 41 42 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 44 30 31 32 33 34 35 36 37 38 39 40 41 42 43 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 45 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 46 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 47 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 48 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 49 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 50 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 51 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 52 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 z = Columns 1 through 30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 ...

6   Pass
n = randi(1000); a = tril(ones(n),-1); z_correct = 1:n; assert(isequal(lastzerorow(a),z_correct))

m = 129 n = 129 z = 1 z = 1 2 z = 1 2 3 z = 1 2 3 4 z = 1 2 3 4 5 z = 1 2 3 4 5 6 z = 1 2 3 4 5 6 7 z = 1 2 3 4 5 6 7 8 z = 1 2 3 4 5 6 7 8 9 z = 1 2 3 4 5 6 7 8 9 10 z = 1 2 3 4 5 6 7 8 9 10 11 z = 1 2 3 4 5 6 7 8 9 10 11 12 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 z = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Column 31 31 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 32 31 32 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 33 31 32 33 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 34 31 32 33 34 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 35 31 32 33 34 35 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 36 31 32 33 34 35 36 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 37 31 32 33 34 35 36 37 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 38 31 32 33 34 35 36 37 38 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 39 31 32 33 34 35 36 37 38 39 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 40 31 32 33 34 35 36 37 38 39 40 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 41 31 32 33 34 35 36 37 38 39 40 41 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 42 31 32 33 34 35 36 37 38 39 40 41 42 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 43 31 32 33 34 35 36 37 38 39 40 41 42 43 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 44 31 32 33 34 35 36 37 38 39 40 41 42 43 44 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 45 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 46 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 47 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 48 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 49 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 50 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 51 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 52 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 z = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2...

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))

m = 844 n = 844 z = 8 z = 8 9 z = 8 9 10 z = 8 9 10 11 z = 8 9 10 11 12 z = 8 9 10 11 12 13 z = 8 9 10 11 12 13 14 z = 8 9 10 11 12 13 14 15 z = 8 9 10 11 12 13 14 15 16 z = 8 9 10 11 12 13 14 15 16 17 z = 8 9 10 11 12 13 14 15 16 17 18 z = 8 9 10 11 12 13 14 15 16 17 18 19 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 z = 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Column 31 38 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 32 38 39 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 33 38 39 40 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 34 38 39 40 41 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 35 38 39 40 41 42 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 36 38 39 40 41 42 43 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 37 38 39 40 41 42 43 44 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 38 38 39 40 41 42 43 44 45 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 39 38 39 40 41 42 43 44 45 46 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 40 38 39 40 41 42 43 44 45 46 47 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 41 38 39 40 41 42 43 44 45 46 47 48 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 42 38 39 40 41 42 43 44 45 46 47 48 49 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 43 38 39 40 41 42 43 44 45 46 47 48 49 50 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 44 38 39 40 41 42 43 44 45 46 47 48 49 50 51 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 45 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 46 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 47 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 48 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 49 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 50 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 51 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Columns 31 through 52 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 z = Columns 1 through 30 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 3...

8   Pass
a = magic(10)-1; z_correct = [0 0 1 0 0 0 0 0 0 0]; assert(isequal(lastzerorow(a),z_correct))

m = 10 n = 10 z = 0 0 1

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))

m = 5 n = 4 z = 5 z = 5 4 z = 5 4 0 3

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))

m = 4 n = 9 z = 4 z = 4 3 z = 4 3 2 z = 4 3 2 1 z = 4 3 2 1 0 1 z = 4 3 2 1 0 1 2 z = 4 3 2 1 0 1 2 3 z = 4 3 2 1 0 1 2 3 4

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