Github 同步地址: https://github.com/grandyang/leetcode/issues/947 参考资料: https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/ https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/discuss/197851/C%2B%2B-DFS https://leetcode.com/problems/most-s...
Solution里的很取巧的做法。横坐标纵坐标都一起union,这样只要遍历stones一次即可。这里将纵坐标+1000,就能简单区分横纵坐标。 时间复杂度 由于union by size,O(nlogn)。如果用union by rank来写,可以 O(n*α(n))。 classSolution {public: vector<int>parent;intremoveStones(vector<vector<int>>&stones) {i...
LeetCode—947. 移除最多的同行或同列石头[Most Stones Removed with Same Row or Column]——分析及代码[Java] 一、题目 二、分析及代码 1. 并查集 (1)思路 (2)代码 (3)结果 三、其他 一、题目 n 块石头放置在二维平面中的一些整数坐标点上。每个坐标点上最多只能有一块石头。 如果一块石头的 同.....
:1582-special-positions-in-a-binary-matrix.py, 2482-difference-between-ones-and-zeros-in-row-and-column.py, 1475-final-prices-with-a-special-discount-in-a-shop.py Language(s) Used:python Submission URL:https://leetcode.com/problems/special-positions-in-a-binary-matrix/submissions/1118605153/...
947. Most Stones Removed with Same Row or Column/ Union Find https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/ 通过这道例题来复习理解Union Find算法 碰到棋盘类型的题目不知如何下手的情况下都可以想想是不是符合Union Find的阶梯逻辑呢; 先不说这道题如何使用Union Find, ...
题目描述 题解 题解 提交记录 提交记录 代码 9 1 2 3 › [[0,1,0],[1,0,1],[0,1,0]] [[1,1,0],[0,0,0],[0,0,0]] [[0]] Source 该题目是 Plus 会员专享题 感谢使用力扣!您需要升级为 Plus 会员来解锁该题目 升级Plus 会员...
947. Most Stones Removed with Same Row or Column Find connected components, with some specific connected component, the remove count is Num of elements - 1. First method is to use BFS. classSolution{publicintremoveStones(int[][] stones){intN=stones.length;int[] visited =newint[N];intret...
1classSolution {2func removeStones(_ stones: [[Int]]) ->Int {3guard stones.count >0else{4return05}6varv = [Int](repeating:0, count: stones.count)7vardr =[Int: [Int]]()8vardc =[Int: [Int]]()9foriin0..<stones.count {10let s =stones[i]11dr[s[1],default: [Int]()]....
Now, amoveconsists of removing a stone that shares a column or row with another stone on the grid. What is the largest possible number of moves we can make? Example 1: Input: stones =[[0,0],[0,1],[1,0],[1,2],[2,1],[2,2]] ...