calculate the number of odd fence values instead of printing them

Question

Shuoze Xu 2022-3-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1682084-calculate-the-number-of-odd-fence-values-instead-of-printing-them

评论： Shuoze Xu 2022-3-28

采纳的回答： Voss

Sample Output:

Given A = [ 5, 4, 6, 7, 3 ; 1, 2, 3, 4, 5 ; 5, 6, 4, 2, 4 ; 4, 5, 3, 2, 1]

% output demo

There are 9 odd values in the fence.

% This is my code

% given a matrix

A = [5,4,6,7,3;1,2,3,4,5;5,6,4,2,4;4,5,3,2,1];

% Get the number of rows and columns

[m,n] = size(A);

odd = 0;

for i = 1:m % number of rows

for j = 1:n % number of column

if (mod(A(i),2)~= 0) % if the element is not equal to zero, this is odd values

odd = odd + 1;

end

fprintf("There are %d odd values in the fence",odd);

There are 9 odd values

but in my code, it is shows There are 15 odd values in the fence.

How to improve this code?

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Image Analyst 2022-3-28

What is your definition of fence? Do you mean matrix?

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Answer 1

Voss 2022-3-28

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1682084-calculate-the-number-of-odd-fence-values-instead-of-printing-them#answer_928349

在 MATLAB Online 中打开

if (mod(A(i,j),2)~= 0)

Use A(i,j) instead of A(i)

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Image Analyst 2022-3-28

And why do you say there are 9 values? My code below shows there are 10 values. Why do we disagree? Which one did I count that you say should not be counted?

Shuoze Xu 2022-3-28

There are 9 odd values showed on the pdf, I think it may a mistake

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Answer 2

Image Analyst 2022-3-28

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1682084-calculate-the-number-of-odd-fence-values-instead-of-printing-them#answer_928369

在 MATLAB Online 中打开

A = [ 5, 4, 6, 7, 3 ; 1, 2, 3, 4, 5 ; 5, 6, 4, 2, 4 ; 4, 5, 3, 2, 1] 
A = 4×5
     5     4     6     7     3
     1     2     3     4     5
     5     6     4     2     4
     4     5     3     2     1
numOddNumbers = nnz(rem(A, 2))
numOddNumbers = 10