10 2023 档案

[题解] CF1790E - XOR Tree
摘要:CF1790E - XOR Tree 题意 给定一颗无根树,在可以改变任意一个点的点权操作基础上,让树上任意简单路径的异或和不为 0 ,问最少需要多少次操作。 思路 假设某个点为根,设 prexx 点到根的树上前缀异或和, axx 的点权,则
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[题解] CF1245D - Shichikuji and Power Grid
摘要:CF1245D - Shichikuji and Power Grid 题目传送门 题意 在一个网格图中,有 n 个城市。目标是使得 n 个城市都通电。 对于一个城市有电,要么选择在其位置建立发电站,要么和另一个有电的城市连线。 对于城市 i ,在其位置建立发电站的费用为 \
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[题解] CF632F - Swimmers in the Pool
摘要:CF632F - Swimmers in the Pool 题目传送门 题意 给定一个大小为 n×n 的矩阵 A 。假设 A 满足以下条件,那么称该矩阵为 MAGIC ,否则为 NOT MAGIC ,并输出对应的属性(即 A 是 MAGIC 还是 NOT
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  1. 1 Scarborough Fair 山田タマル
  2. 2 Faster Than Light Paradox Interactive,Andreas Waldetoft
  3. 3 世界は可愛く出来ている 上海アリス幻樂団
Scarborough Fair - 山田タマル
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作词 : Pual Simon

作曲 : Pual Simon

作词 : イングランド民謡

作曲:加藤达也

Are you going to Scarborough Fair?

Parsley, sage, rosemary and thyme

Remember me to one who lives there

He once was a true love of mine

Tell him to make me a cambric shirt

Tell him to make me a cambric shirt

Parsley, sage, rosemary and thyme

Without no seams nor needlework

Then he'll be a true love of mine.

Tell him to find me an acre of land

Tell him to find me an acre of land

Parsley, sage, rosemary and thyme

Between the salt water and the sea strand

Then he'll be a true love of mine

Are you going to Scarborough Fair?