作为外国人就两个东西重要：绿卡，钱 (转载)# Biology - 生物学
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请各位大牛帮忙看看。我连题目都没看懂。汗颜。。。
Write a program to synchronize data sets between data centers using as few
copies as possible.
Example 1:
----------
Input:
4
1 3 4
1 2 3
1 3
1 4 2
One Possible Correct Output:
2 2 1
4 1 2
2 2 3
4 4 3
3 1 4
done
Write a program to synchronize data sets between data centers using as few
copies as possible.
Example 1:
----------
Input:
4
1 3 4
1 2 3
1 3
1 4 2
One Possible Correct Output:
2 2 1
4 1 2
2 2 3
4 4 3
3 1 4
done
