输入：15

输出：[[1,2,3,4,5],[4,5,6],[7,8]]

class Solution {

public:

vector<vector<int> > vv;

vector<vector<int> > findContinuousSequence(int sum) {

    int l = ; int r = ;

    vector<int> nums;

    for (int i = ; i <= sum /  + ; i++) {

        nums.push_back(i);

    }

    int tmpSum = nums[l];

    while (l < nums.size() && r < nums.size() && l <= r) {

        if (tmpSum > sum) { tmpSum -= nums[l]; l++; continue; }

        else if (tmpSum < sum) {

            tmpSum += nums[r+]; r++; continue;

        }

        else if (tmpSum == sum) {

            vector<int> v;

            for (int i = l; i <= r; i++) {

                v.push_back(nums[i]);

            }

            vv.push_back(v);

            if (r < nums.size() - )

                tmpSum += nums[r + ];

            r++; continue;

        }

    }

    return vv;

}

};