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Re:为什么WA????????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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