Re: [問題] 有關矩陣內的元素的位置已回收
※ 引述《kevintjaco (好久沒玩)》之銘言:
: matrix = zeros(5,5);
: while sum(sum(matrix)) ~= 9
: i = mod(floor(rand * 100),5) + 1;
: j = mod(floor(rand * 100),5) + 1;
: while matrix(i,j)
: i = mod(floor(rand * 100),5) + 1;
: j = mod(floor(rand * 100),5) + 1;
: end
: matrix(i,j) = 1;
: end
剛剛爬了一下文
a=zeros(5,5);
b=randperm(25);
a(b(1:9))=1;
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