Jip J. Dekker
fad1b07018
git-subtree-dir: software/minizinc git-subtree-split: 4f10c82056ffcb1041d7ffef29d77a7eef92cf76
15 lines
479 B
MiniZinc
15 lines
479 B
MiniZinc
int: n;
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array [1..n] of var 1..n: q; % i列的皇后在行q[i]
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include "alldifferent.mzn";
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constraint alldifferent(q); % 不同行
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constraint alldifferent([ q[i] + i | i in 1..n]); % 不同对角线
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constraint alldifferent([ q[i] - i | i in 1..n]); % 上+下
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% 搜索
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solve :: int_search(q, first_fail, indomain_min, complete)
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satisfy;
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output [ if fix(q[j]) == i then "Q" else "." endif ++
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if j == n then "\n" else "" endif | i,j in 1..n]
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