414. Third Maximum Number

这个题有点坑啊。。主要是自己蠢,以为 Integer.MIN_VALUE -1 == -2147483649

public class Solution
{
    public int thirdMax(int[] nums)
    {
        long max = (long)Integer.MIN_VALUE-1, mid = (long)Integer.MIN_VALUE-1, min = (long)Integer.MIN_VALUE-1;

        for(int j: nums)
        {
            long i = (long)j;
            if(i == max || i == min || i == mid) continue;
            else if(i > max)
            {
                min = mid;
                mid = max;
                max = i;
            }
            else if(i > mid)
            {
                min = mid;
                mid = i;
            }
            else if(i > min) min = i;
            else continue;
        }

        if(min != (long)Integer.MIN_VALUE-1) return (int)min;
        else if(max != (long)Integer.MIN_VALUE-1) return (int)max;
        else return Integer.MIN_VALUE;
 /*
[1,2,3,4,5]
[1,2,3,4,4,5,5]
[1,2,-2147483648]
 */

    }
}