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我写成这样,怎么还是WA?请你们帮我看看

Posted by tcxgsy at 2005-08-16 13:40:56 on Problem 2452
#define  M  50001
#include"stdio.h"
#include"math.h"

long com(long a[],long n)
{ int i, temp_max, temp_min, max, min;
    temp_max = temp_min = a[0];
    max = min = 0;
    for(i=1;i<n;i++) {
        if(a[i] > temp_max){
             temp_max = a[i];
            max = i;
        }
        if(a[i] < temp_min){
            temp_min = a[i];
            min = i;
        }
    }
    if(max>min)  return(max-min);
        else  return(-1);
}
 int main()
{
	long n,max;
	long i,j;
          long a[M];
	while (scanf("%ld",&n)==1)
	{
		j=0;
		max=0;
		for (i=0;i<n;i++)
		{
			scanf("%ld",&a[i]);
		}
		max=com(a,n);
		printf("%ld\n",max);
	}


	return 0;
}

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