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Update construction.md
author
partychicken
<44670668+partychicken@users.noreply.github.com>
Mon, 1 Apr 2019 12:15:33 +0000
(20:15 +0800)
committer
GitHub
<noreply@github.com>
Mon, 1 Apr 2019 12:15:33 +0000
(20:15 +0800)
fix
docs/basic/construction.md
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diff --git
a/docs/basic/construction.md
b/docs/basic/construction.md
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--- a/
docs/basic/construction.md
+++ b/
docs/basic/construction.md
@@
-47,9
+47,11
@@
考虑通过构造前缀和序列的方式来获得原数列,可以发现前缀和序列两两之间的差在模意义下不能相等,因为前缀和序列的差分序列对应着原来的排列。
因此我们尝试以前缀和数列在模意义下为
+
$$
0,1,-1,2,-2,\cdots
$$
+
这样的形式来构造这个序列,不难发现它完美地满足所有限制条件。
对于 task2: