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Re:为什么WA????????

Posted by y05zh at 2006-08-17 14:28:43 on Problem 2924
In Reply To:为什么WA???????? Posted by:y05zh at 2006-08-17 14:28:35
> #include<iostream.h>
> #include<stdio.h>
> #include<math.h>
> 
> int main()
> {
> 	__int64 x,y;
> 	__int64 sum;
> 	int i,n;
> 	cin>>n; 
> 	for(i=0;i<n;i++)
> 	{       
> 		//int flag=0;
> 		
> 
> 		scanf("%I64d%I64d",&x,&y);
> 		
> 
> 		sum=(x+y)*(y-x+1)/2;
> 	//	if(flag==1)printf("-");
> 		printf("Scenario #%d:\n",i+1);
> 
> 		printf("%I64d\n",sum);
> 
> 		printf("\n");
> 	}
> 	return 0;
> }

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