Question

为什么有的程序在Gode：：Blocks 10.05运行结果不对，在VC++6.0运行却是对的？比如

#include <stdio.h>
int main()
{
int n,a,b,i,c;
float sum;
scanf("%d",&n);
for(a=1;a<=n;a++)
{ sum=0;
scanf("%d",&b);
for(i=1;i<=b;i++)
{
if(i%2==0)
sum=sum+(-1)/i;
else
sum=sum+1/i;
}
printf("%.2f\n",sum);
}

return 0;
}

Answer 1

cb结果：

4
1
1.00
2
1.00
3
1.00
4
1.00

Process returned 0 (0x0) execution time : 15.341 s
Press any key to continue.

vc结果：
4
1
1.00
2
1.00
3
1.00
4
1.00
Press any key to continue

Anything different?哪个是正确的？

追问

呵呵。谢啦。忘加folat了、、