剑指64-滑动窗口的最大值

class Solution {
public:
    vector<int> maxInWindows(const vector<int>& num, unsigned int size)
    {
        vector<int> res;
        if(size>num.size()) return res;
        int begin=0, end=size-1;
        for(end, begin;end<num.size();end++,begin++)
        {
            res.push_back(getMax(num, begin, end));
        }
        return res;
    }

    int getMax(vector<int> res, int begin, int end)
    {
        int cur_max=res[begin];
        for(int i=begin;i<=end;i++)
        {
            if(res[i]>cur_max) cur_max=res[i];
        }
        return cur_max;
    }
};