请注意：
在 QOJ 上，不需要担心题目中所描述的“不允许使用以下关键字”的限制，你提交的两个程序会分两次运行。
在提交时，你需要提交
code.cpp与decode.cpp，其中需要分别包含code.h与decode.h。
QOJ.ac
QOJ
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Time Limit:
5 s
Memory Limit:
512 MB
Total points:
100
Communication
#295. 编码干扰
统计
此題目在以下比賽中使用過：
This problem is prepared by
AHdoc .
The problem is available in the following languages:
C++11, C++14, C++17, C++20
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