剑指 Offer 57 - II. 和为s的连续正数序列

题目链接：
https://leetcode.cn/problems/he-wei-sde-lian-xu-zheng-shu-xu-lie-lcof/description/?favorite=xb9nqhhg
代码：

class Solution {
public:
    vector<vector<int>> findContinuousSequence(int target) {
        vector<vector<int>>ans;
        vector<int>cnt;
        for(int i=1;i<=target/2;i++)
        {
            int sum=i;
            for(int j=i+1;j<target;j++)
            {
                sum+=j;
                if(sum>target) break;
                if(sum==target)
                {
                    cnt.clear();
                    for(int k=i;k<=j;k++)
                    {
                        cnt.push_back(k);
                    }
                    ans.push_back(cnt);
                }
            }
        }
        return ans;
    }
};