为啥编译器运行成功，oj会运行错误

Question

#include<stdio.h>
#include<math.h>
int opposite(int n)
{
    if (n == 10)
        return 1;
    int m = (int)ceil(log10(n)), sum = 0;
    for (int i = m - 1; i >= 0; i--)
    {
        sum = n % 10 * pow(10, i) + sum;
        n = n / 10;
    }
    return sum;
}

int main()
{
    int bottle, d;
    scanf("%d", &d);
    while (d--)
    {
        int a[50] = { 0 }, b[50] = { 0 }, m, n;
        scanf("%d%d", &m, &n);
        for (int i = m; i <= n; i++)
        {
            a[i] = i;
            b[i] = opposite(i);
        }

        while (1)
        {
            int sum = 0;
            for (int j = m + 1; j <= n; j++)
            {
                if (b[j] < b[j - 1])
                {
                    bottle =a[j];
                    a[j] = a[j - 1];
                    a[j - 1] = bottle;
                    sum++;
                    bottle = b[j];
                    b[j] =b[j - 1];
                    b[j - 1] = bottle;
                    sum++;
                }
                //if(sum==0)
                //break;
            }
            if (sum == 0)
                break;
        }


        for (int j = m; j <= n; j++)
        {
            printf("%d ", a[j]);
        }
        printf("\n");
    }
    return 0;
}

oj平台运行错误50%

Answer 1

反转比较，荔枝代码不做优化，对照

https://img-blog.csdnimg.cn/56a56bf5d704424999a5d57cb1e683e2.png