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树形DP，合并第I颗子树时，注意不要覆盖原来的信息。一组测试数据12 7 1 2 1 3 1 4 2 5 3 6 3 7 4 8 4 9 5 10 10 11 10 12 正确答案是： 1 若覆盖掉原来信息则会得到错误答案： 3 Followed by: Post your reply here: |
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