james donald

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12 years, 162 days

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my programme seems to be giving me all permutations on a nXn board been trying to find where i went wrong but its took me days and still cant locate ... i want this procedure to give me the n queens on a nxn board that are non attacking. please help

global L;
local i,k;
L:= Array(1..k);
for i from 1 to k do
if L(i)=L(k) # two in the same column
or abs(L(i)-L(k)) = abs(i-k) # in the same diagonal
return (false);
return (true);
end proc:

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