Write a function that takes N as the input, and outputs a matrix whose upper-left (NxN) quadrant contains all ones, the lower-right (NxN) quadrant contains all N's, and zeros everywhere else. For example, if N = 3:
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Good problem!
function M = foursquare(N)
M = zeros(2*N);
for i=1:length(M)/2
for j=1:length(M)/2
M(i,j)=1;
j=j+1;
end
i=i+1;
end
for i=(length(M)/2)+1:length(M)
for j=(length(M)/2)+1:length(M)
M(i,j)=3;
j=j+1;
end
i=i+1;
end
end
Just wrote that program that gives me the right solution but I don't understand why it won't work.Any suggestions?
@Andreea you're hard-coding the value 3 on the twelfth line; the problem description says that the lower-left quadrant should contain N's instead.
good one
N=3
A=ones(3)
B=zeros(3)
C=N*ones(3)
M=([A B;B C])
I'm just starting out self learning and to my understanding this code answers the question since i made N an input but it says i did it wrong. i guess i have to use this 'foursquare' function (only seeing it for the first time now). can someone please explain what the function does?