Cody

# Problem 792. Set some matrix elements to zero

Solution 1942342

Submitted on 19 Sep 2019 at 5:31 by Doan Quang Manh
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### Test Suite

Test Status Code Input and Output
1   Pass
x = [1 2 3 4 5 5 6 5 7 9 8 3]; y_correct = [0 0 0 4 0 0 6 0 0 9 0 0]; assert(isequal(your_fcn_name(x),y_correct))

a = 4 b = 4 x = 0 0 0 0 5 5 6 5 7 9 8 3 x = 0 0 0 4 5 5 6 5 7 9 8 3 a = 3 b = 6 x = 0 0 0 4 0 0 0 0 7 9 8 3 x = 0 0 0 4 0 0 6 0 7 9 8 3 a = 2 b = 9 x = 0 0 0 4 0 0 6 0 0 0 0 0 x = 0 0 0 4 0 0 6 0 0 9 0 0 y = 0 0 0 4 0 0 6 0 0 9 0 0

2   Pass
x = magic(4); y_correct = [16 0 0 0 0 11 0 0 0 0 0 12 0 0 15 0]; assert(isequal(your_fcn_name(x),y_correct))

a = 1 b = 16 x = 0 0 0 0 5 11 10 8 9 7 6 12 4 14 15 1 x = 16 0 0 0 5 11 10 8 9 7 6 12 4 14 15 1 a = 2 b = 11 x = 16 0 0 0 0 0 0 0 9 7 6 12 4 14 15 1 x = 16 0 0 0 0 11 0 0 9 7 6 12 4 14 15 1 a = 4 b = 12 x = 16 0 0 0 0 11 0 0 0 0 0 0 4 14 15 1 x = 16 0 0 0 0 11 0 0 0 0 0 12 4 14 15 1 a = 3 b = 15 x = 16 0 0 0 0 11 0 0 0 0 0 12 0 0 0 0 x = 16 0 0 0 0 11 0 0 0 0 0 12 0 0 15 0 y = 16 0 0 0 0 11 0 0 0 0 0 12 0 0 15 0

3   Pass
x = pi; y_correct = pi; assert(isequal(your_fcn_name(x),y_correct))

a = 1 b = 3.1416 x = 0 x = 3.1416 y = 3.1416

4   Pass
x = 0; y_correct = 0; assert(isequal(your_fcn_name(x),y_correct))

a = 1 b = 0 x = 0 x = 0 y = 0

5   Pass
x = toeplitz(1:5); y_correct = [ 0 0 0 0 5 0 0 0 0 4 3 0 0 0 0 4 0 0 0 0 5 0 0 0 0]; assert(isequal(your_fcn_name(x),y_correct))

a = 5 b = 5 x = 0 0 0 0 0 2 1 2 3 4 3 2 1 2 3 4 3 2 1 2 5 4 3 2 1 x = 0 0 0 0 5 2 1 2 3 4 3 2 1 2 3 4 3 2 1 2 5 4 3 2 1 a = 5 b = 4 x = 0 0 0 0 5 0 0 0 0 0 3 2 1 2 3 4 3 2 1 2 5 4 3 2 1 x = 0 0 0 0 5 0 0 0 0 4 3 2 1 2 3 4 3 2 1 2 5 4 3 2 1 a = 1 5 b = 3 x = 0 0 0 0 5 0 0 0 0 4 0 0 0 0 0 4 3 2 1 2 5 4 3 2 1 x = 0 0 0 0 5 0 0 0 0 4 3 0 0 0 0 4 3 2 1 2 5 4 3 2 1 a = 1 b = 4 x = 0 0 0 0 5 0 0 0 0 4 3 0 0 0 0 0 0 0 0 0 5 4 3 2 1 x = 0 0 0 0 5 0 0 0 0 4 3 0 0 0 0 4 0 0 0 0 5 4 3 2 1 a = 1 b = 5 x = 0 0 0 0 5 0 0 0 0 4 3 0 0 0 0 4 0 0 0 0 0 0 0 0 0 x = 0 0 0 0 5 0 0 0 0 4 3 0 0 0 0 4 0 0 0 0 5 0 0 0 0 y = 0 0 0 0 5 0 0 0 0 4 3 0 0 0 0 4 0 0 0 0 5 0 0 0 0

6   Pass
x = ones(5); y_correct = [ 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0]; assert(isequal(your_fcn_name(x),y_correct))

a = 1 2 3 4 5 b = 1 x = 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 x = 1 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 a = 1 2 3 4 5 b = 1 x = 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 x = 1 0 0 0 0 1 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 a = 1 2 3 4 5 b = 1 x = 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 x = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 1 1 1 1 1 1 1 1 1 a = 1 2 3 4 5 b = 1 x = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 x = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 1 1 1 1 a = 1 2 3 4 5 b = 1 x = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 x = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 y = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0

7   Pass
x =nchoosek(7:9,3); y_correct =[ 0 0 9]; assert(isequal(your_fcn_name(x),y_correct))

a = 3 b = 9 x = 0 0 0 x = 0 0 9 y = 0 0 9

8   Pass
x =nchoosek(4:9,2); y_correct = [ 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 0 9]; assert(isequal(your_fcn_name(x),y_correct))

a = 2 b = 5 x = 0 0 4 6 4 7 4 8 4 9 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 x = 0 5 4 6 4 7 4 8 4 9 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 6 x = 0 5 0 0 4 7 4 8 4 9 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 x = 0 5 0 6 4 7 4 8 4 9 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 7 x = 0 5 0 6 0 0 4 8 4 9 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 x = 0 5 0 6 0 7 4 8 4 9 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 8 x = 0 5 0 6 0 7 0 0 4 9 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 x = 0 5 0 6 0 7 0 8 4 9 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 9 x = 0 5 0 6 0 7 0 8 0 0 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 x = 0 5 0 6 0 7 0 8 0 9 5 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 6 x = 0 5 0 6 0 7 0 8 0 9 0 0 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 5 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 7 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 0 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 5 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 8 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 0 5 9 6 7 6 8 6 9 7 8 7 9 8 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 5 9 6 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 0 6 7 6 8 6 9 7 8 7 9 8 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 6 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 7 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 0 6 8 6 9 7 8 7 9 8 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 6 8 6 9 7 8 7 9 8 9 a = 2 b = 8 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 0 6 9 7 8 7 9 8 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 6 9 7 8 7 9 8 9 a = 2 b = 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 0 7 8 7 9 8 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 7 8 7 9 8 9 a = 2 b = 8 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 0 7 9 8 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 7 9 8 9 a = 2 b = 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 0 8 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 8 9 a = 2 b = 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 0 0 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 0 9 y = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 0 9