20186gdoi13

快读

Posted on Edited on In Valine:
Symbols count in article: 189 Reading time ≈ 1 mins.
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long long read()
  {
	long long nm=0,fh=1;
	char cw=getchar();
	for(; !isdigit(cw); cw=getchar()) if(cw=='-') fh=-fh;
	for(; isdigit(cw); cw=getchar()) nm=nm*10+(cw-'0');
	return nm*fh;
  }