#include<stdio.h>
void main()
{  float a[4][5];
   float (*p)[5];
   int i,j;
   void aver(float (*p)[5],int n);
   void search(float (*p)[5],float all);
   printf("输入全部的成绩:\n");
   for(i=0;i<4;i++)
       for(j=0;j<5;j++)
       scanf("%f",&a[i][j]);
       aver(a,5);
       search(a,0);
}


   
             void aver(float (*p)[5],int n)       //求第一门课程的平均分
             {   float sum=0;
                 float c;
                 int k;
                 for(k=0;k<4;k++)
                 {  sum=sum+*(*(p+k)+0);
                 }
                 c=sum/5;
                 printf("第一门课程的平均分:%f\n",c);
             }
  
              void search(float (*p)[5],float all)   //找出有两门以上的课程不及格的学生，输出他们的学号，总成绩和平均成绩
               {  int m=0;
                  float averge;
                  int i,j,number,k;
                  for(i=0;i<4;i++)
                  {      for(j=0;j<5;j++)
                      {  if(*(*(p+i)+j)<60)
                  {     m++;
                  }
                  }
                         if(m>2)
                         { for(k=0;k<5;k++)
                         { all=all+*(*(p+i)+k);
                         }
                          number=i+1;
                          averge=all/5;
                         printf("学号:%d\n总成绩:%d\n平均成绩:%d\n",number,all,averge);
                             m=0;  
                         }
                  }
              }