Problem

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展开矢量

Problem

给定一个整数列表。 
1. 从中创建一个向量。
2.“扩大”矢量并打印出来。
 
例子
<头> <正文>

time 1000 ms
memory 256 Mb
Rules for program design and list of errors in automatic problem checking

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# 输入 输出
1 1 2 3 4 5 6 [6 5 4 3 2 1]