lt417.c

programs in <C program design>

# include "stdio.h"
 void main( )
 { float score[10],aver; 
   float average( );
   int i;
   char s;
  printf("input 10 score:\n");
  for (i=0;i<10;i++)
   scanf("%f",&score[i]);
   printf("\n");
   aver=average(score);
   printf("average score is %5.2f\n",aver);  
   scanf("%c",s);
}
 float average(array)
 float array[10];
 { int i;
  float aver,sum=array[0];
   for (i=1;i<10;i++)
    sum=sum+array[i];
    aver=sum/10;
  return (aver);  
}