用数组模拟,边界条件做吐了,还是用库中的集合吧

public  int LastRemaining_Solution(int n, int m) {
       if(n==0||m==0)return -1;
        int[] arr =new int[n];
        int count = n;
        int cur = 0;
        while(count!=1){
            int i = 0;
            while(i<m-1){
                if(arr[cur%n]==1) cur=(cur+1)%n;
                else{
                    cur=(cur+1)%n;
                    i++;
                }
            }
            while(arr[cur]==1){
                cur=(cur+1)%n;
            }
            arr[cur]=1;

            count--;
        }
        int i;
        for(i=0;i<n;i++){
            if(arr[i]!=1) break;
        }
        return i;
    }