#2599. C++-GESP 2023-09认证二级-编程题01（小杨的X字矩阵）（拓展04-外围为口内围为X）
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ID: 2599
Type: Default
1000ms
256MiB
Tried: 14
Accepted: 7
Difficulty: 8
Uploaded By:
吴泽宏 (wuzehong)
Tags> C++-GESP 2023-09认证二级-编程题01（小杨的X字矩阵）（拓展04-外围为口内围为X）
Background
Description
只形成外围为+围成的口，内围为X（如输入21）：
Format
Input
Output
Samples
21
+++++++++++++++++++++
++-----------------++
+-+---------------+-+
+--+-------------+--+
+---+-----------+---+
+----+---------+----+
+-----+-------+-----+
+------+-----+------+
+-------+---+-------+
+--------+-+--------+
+---------+---------+
+--------+-+--------+
+-------+---+-------+
+------+-----+------+
+-----+-------+-----+
+----+---------+----+
+---+-----------+---+
+--+-------------+--+
+-+---------------+-+
++-----------------++
+++++++++++++++++++++
Limitation
1s, 1024KiB for each test case.