Description: The function memset () is convenient and quick for setting initial values to a large number of storage spaces.
The array around[] stores the relative index of the surrounding elements, so that the disorder becomes ordered and can be processed by loops.
This is the program is written before, take it directly to use AC
To Search:
File list (Check if you may need any files):
新建文件夹\str.cpp
新建文件夹\str.exe
新建文件夹