先附上一份頭文件

ZOJ的編譯器很不習慣。經常出現編譯錯誤。很多時候是因爲缺少頭文件

我也懶得記那個函數要用到哪個頭文件。常用的都寫上就OK了：

 

#include "cstdlib" #include "cctype" #include "cstring" #include "cstdio" #include "cmath" #include "algorithm" #include "vector" #include "string" #include "iostream" #include "sstream" #include "set" #include "queue" #include "stack" #include "fstream" #include "iomanip" #include "bitset" #include "list" #include "ctime" using namespace std;