用1~12排列成星形狀,使每條線的和相等?
回答 (1)
.........5
...... /...\
1 - 2 - 11-12
.\ /.........\ /
.10 ........ 4
./ \........ / \
9 - 8 - 3 - 6
.......\ /
....... 7
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