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走过,路过,千万不要错过。偶是菜鸟,菜刀的菜。请大虾帮我看看我错在那了?偶第一次编程!!

Posted by qqliuyong at 2005-07-30 10:41:27 on Problem 1061
#include <math.h>
#include <stdio.h>

main()
{ long m,n,x,y,l,j,s,o,a,b,p;
  int  i;
  scanf("%ld%ld%ld%ld%ld",&x,&y,&m,&n,&l);

  
  if(m>n) 
		{if(x>y)  s=l+y-x;
         else     s=y-x; }
  
    else 
	{		if(m==n)
			{printf("Impossible\n");return 0;}
			
		else 
			{if(x>y)s=x-y;else s=l-y+x;}
	}
 
  j=fabs(m-n);
  a=s%j;
  b=l%j;
  
 
  if(a==0){printf("%ld",(s/j));return 0;}

   else  
   {p=a+b;
	  for(i=1;;i++) 
	  {
         if(p%j==a){printf("imporssible");return 0;}  
         else
			{  if(p%j==0)break;
		           else p=b+p;
		            
				   
			}
	  }
   }  
   
  
 o=i*(l/j)+(p/j);
 printf("%ld\n",o);
 return 0;
}

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