1 /* 2 *PAT IO-02 整数四则运算 3 *2015.7.30 4 *作者:flx413 5 */ 6  7 #include
     
       8 int main() 9 {10     int a[4], sum;11     float average;12     scanf("%d%d%d%d", &a[0], &a[1], &a[2], &a[3]);13     sum = a[0] + a[1] + a[2] + a[3];14     average = sum / 4.0;15     printf("Sum = %d; Average = %.1f", sum, average);16     return 0;17 }