最大值和最小值

int Max(int *A, int arraysize)
{
        int max = A[0], i;
        for(i=0; i<arraysize; i++)
        {
            if(max < A[i])
            {
                max = A[i];
            }
        }
        return max;
}

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

int main()
{
        int max, min, i;
        int A[] = {0, 2, 55, 3, 5, 2, 9};
        int arraysize = 7;
        if(arraysize % 2 == 0)
        {
            if(A[0] > A[1])
            {
                max = A[0];
                min = A[1];
            }
            else
            {
                max = A[1];
                min = A[0];
            }
            i = 2;
        }
        else
        {
            max = min = A[0];
            i = 1;
        }
        for(; i<arraysize; i+=2)
        {
            if(A[i] > A[i+1])
            {
                if(A[i] > max)
                {
                    max = A[i];
                }
                if(A[i+1] <  min)
                {
                    min = A[i+1];
                }
            }
            else
            {
                if(A[i+1] > max)
                {
                    max = A[i+1];
                }
                if(A[i] < min)
                {
                    min = A[i];
                }
            }
        }
        printf("max:%d\nmin:%d\n", max, min);
        return 0;

}