}intmin_area=INT_MAX; map<pair<int,int>,int> last_col;//(r1,r2) -> the last column they are infor(auto it=m.begin();it!=m.end();++it){intc=it->first; vector<int> &vec=it->second; sort(vec.begin(),vec.end());for(inti=0;i<vec.size();++i){for(intj=i+1;j<vec....
原题链接在这里:https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/ 题目: There are a number of spherical balloons spread in two-dimensional space. For each balloon, provided input is the start and end coordinates of the horizontal diameter. Since it's horizontal, y-coor...
Output: 2 Explanation: One way is to shoot one arrow for example at x = 6 (bursting the balloons [2,8] and [1,6]) and another arrow at x = 11 (bursting the other two balloons). 此题深受Meeting Rooms2影响,用了同样的方法,后来感觉优先队列似乎有些多余,可以进行简化,没简化的代码如下:...
bi]indicates that there is an undirected edge between the two nodesaiandbiin the tree, you can choose any node of the tree as the root. When you select a nodexas the root, the result tree has heighth. Among all possible rooted trees, those with minimum height (i.e.min...