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求教大神!!!为什么float改成double之后,就wa了呢???

Posted by 304680632 at 2014-03-03 23:39:14 on Problem 1004
#include <stdio.h>
int main()
{
    float a[12];
	float t;
	int i;
    for(i=0;i<12;i++)
      scanf("%f",&a[i]);
	t=0.0;
    for(i=0;i<12;i++)
    {t+=a[i];}
    printf("$%.2f\n",t/12);
    return 1;
}
改成
#include <stdio.h>
int main()
{
    double a[12];
	double t;
	int i;
    for(i=0;i<12;i++)
      scanf("%lf",&a[i]);
	t=0.0;
    for(i=0;i<12;i++)
    {t+=a[i];}
    printf("$%.2lf\n",t/12);
    return 1;
}

之后就wa了……

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