摘要:
#include #define R register int using namespace std; const int inf=0x3f3f3f3f; inline int read() { int x=0,f=1;char ch=getchar(); while(ch'9') if(ch=='-') f=-1,ch=getchar(); while(ch>='0'... 阅读全文
posted @ 2019-11-04 13:16
Gold_stein
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