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Re:好奇怪为什么把语言选择为C不可以编译,选择C++就可以通过呢?

Posted by frkstyc at 2006-03-29 15:43:17 on Problem 2000
In Reply To:好奇怪为什么把语言选择为C不可以编译,选择C++就可以通过呢? Posted by:summery at 2006-03-29 15:37:27
> #include<stdio.h>
> #include<math.h>
> void main()
> {
> 	double num = 0;
>     int sum=0;
> 	int i;
> 	int n;
> 	while(scanf("%d",&n))
> 	{
> 		sum = 0;
> 		if(n==0)
> 			break;
> 		for( i=1; i<=n;i++)
> 		{
> 			num = (sqrt(1+8*i)-1)/2.0;
> 			if((num-int(num))!=0)
                                   ~~~~~~~~这个是C的类型转换吗?!
> 				num = num +1;
> 			sum += int(num);
> 		}
> 		printf("%d %d\n",n,sum);
> 	}
> 
> }
> 
> 代码如上,明明是用c语言写的,把语言选择为C却显示 C E,而选择C++却可以Accepted?

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