while循环结束不了，printf未输出

Question

#define  _CRT_SECURE_NO_WARNINGS 
#include<stdio.h>
#include<math.h>
int main()

```c
{
    float c,h,p,GP,GPA,sum1 = 0, sum2 = 0;
    while (scanf("%f%f", &c, &h) != EOF)
    {
        if (c >= 60 || c <= 100)
        {
            p = ((100 - c), 2);
            GP = 4 - (3.0 / 1600.0) * p;
        }
        else if (c >= 0 || c < 60)
        {
            GP= 0;
        }
        sum1 = sum1 + h;
        sum2 = sum2 + GP * h;
    }
    GPA = sum2 / sum1;
    printf("总GPA为：%.2f", GPA);
    return 0;
}

while循环结束不了，printf没有显示
```

Answer 1

修改如下

#define  _CRT_SECURE_NO_WARNINGS 
#include<stdio.h>
#include<math.h>
int main()
{
    float c, h, p, GP, GPA, sum1 = 0, sum2 = 0;
    while (scanf("%f%f", &c, &h) == 2)
    {
        if (c >= 60 && c <= 100)
        {
            p = pow((100 - c), 2);
            GP = 4 - (3.0 / 1600.0) * p;
        }
        else if (c < 60 && c >= 0)
        {
            GP = 0;
        }
        sum1 = sum1 + h;
        sum2 = sum2 + GP * h;
    }
    GPA = sum2 / sum1;
    printf("总GPA为：%.2f", GPA);
    return 0;
}