2122564_ac_15ms_56k.c

北大大牛代码 1240道题的原代码 超级权威

# include <stdio.h>

int main()
{
   char ch;
   int n;

   n = 0;
   while(scanf("%c",&ch)==1)
   {
      if(ch!='"')
	 printf("%c",ch);
      else
	 if(n==0)
	  {
	     printf("``");
	     n++;
	  }
	  else
	    {
	       printf("''");
	       n--;
	    }
   }
   return 1;
}