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为什么会出现Compile Error

Posted by tcxgsy at 2005-08-08 12:39:58 on Problem 2350
#define M 1001
#include"stdio.h"
#include"math.h"

double aver(int a[M],int m)
{ 
   long sum=0;
   double aver;
   int i,j=0;
  for(i=1;i<=m;i++)
    sum+=a[i];
     aver=sum/m;
     for(i=1;i<=m;i++)
      if(a[i]>aver)  j++;
   m=(double)j/(double)m;
   return(m*100);
}
main()
{ int n,m,i;
  int a[M];
  double d;
  scanf("%d",&n);
  while(n)
   {   scanf("%d"&m);
        for(i=1;i<=m;i++)
          scanf("%d",&a[i]);
     d=aver(a,m);
     printf("%.3lf%c\n",d,'%');
      n--;
     }
}


Compile Error 
Main.c
604945\Main.c(24) : error C2296: '&' : illegal, left operand has type 'char [3]'
604945\Main.c(24) : error C2198: 'scanf' : too few actual parameters




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