和为S的连续正序列

public static ArrayList<ArrayList<Integer>> Sum(int sum){
		ArrayList<ArrayList<Integer>> res=new ArrayList<ArrayList<Integer>>();
		ArrayList<Integer> list=new ArrayList<Integer>();
		int min=0;
		int max=0;
		int resSum=0;
		while(min<=(sum/2+1)){
			if(resSum==sum){
				for(int j=min;j<=max;j++){
					list.add(j);
				}
				res.add(list);
				list=new ArrayList<>();
				resSum=resSum-min;
				min++;
				max++;
				resSum=resSum+max;
			}else if(resSum<sum){
				max++;
				resSum=resSum+max;
			}else{
				resSum=resSum-min;
				min++;
			}
		}
		return res;
	}