C语言···帮忙找错误·～

# include <stdio.h>
# include <stdlib.h>

float ave(float c[3])
{ float s;
int j;
s=0;
for(j=0;j<3;j++)
s+=c[j];

return s/3;
}

float sum(float c[3])
{ float s;
int j;
s=0;
for(j=0;j<3;j++)
s+=c[j];

return s;
}

float MaxMark(float *q) //*
{ // *
float max; // *
int i; //*
max=q[0]; // */
for(i=1;i<5;i++) //*
{ //*
if (q[i]>max)
max=q[i]; //*
}
return max; //*
}

# include <stdio.h>
# include <stdlib.h>

void main()
{ int i,j,q;
flo

# include <stdio.h>
# include <stdlib.h>

float ave(float c[3])
{ float s;
int j;
s=0;
for(j=0;j<3;j++)
s+=c[j];

return s/3;
}

float sum(float c[3])
{ float s;
int j;
s=0;
for(j=0;j<3;j++)
s+=c[j];

return s;
}

float MaxMark(float *q)
{
float max;
int i;
max=q[0];
for(i=1;i<5;i++)
{
if (q[i]>max)
max=q[i];
}
return max;
}

# include <stdio.h>
# include <stdlib.h>

void main()
{ int i,j;
float *q;
float a[5][3],p[5],z[5],max;
for(i=0;i<5;i++)
{ printf("第%d个学生\n",i+1);
for(j=0;j<3;j++)
{ printf("第%d门成绩：",j+1);
scanf("%f",&a[i][j]);
}
p[i]=ave(a[i]);
z[i]=sum(a[i]);
}
for(i=0;i<5;i++)
printf("第%d个学生 平均分：%3.1f\n",i+1,p[i]);