Graph(图论)Id Name Difficulty Similar Problems Comments 133 Clone Graph ★★ 138 queue + hashtable 200 Number of Islands ★★ 547 695 733 827 1162 grid + connected components 841 Keys and Rooms ★★ 1202 DFS, connected components 207 Course Schedule ★★★ 210 802 topology sorting 399...
dfs(graph, colors, nxt, -color) { return false } } // 此时当前联通子图点所有点都染色成功, // 即当前联通子图是一个二分图,返回 true return true } 题目链接: Is Graph Bipartite? : leetcode.com/problems/i 判断二分图: leetcode.cn/problems/is LeetCode 日更第 104 天,感谢阅读至此的你...
if (!dfs(graph, i, color)) return false; } return true; } private boolean dfs(List<Integer>[] graph, int node, int[] color) { for (int i = 0; i < graph[node].size(); i++) { //for every neighbor of current node int op = graph[node].get(i); if (color[op] == 0)...
class Solution: def isBipartite(self, graph: List[List[int]]) -> bool: # 初始化一个大小为 n 的并查集 union_find: UnionFind = UnionFind(len(graph)) # 遍历所有的点 for i, adjacent in enumerate(graph): # 遍历所有邻接点 for j in adjacent: # 如果 i 和 j 已经在同一个集合中, # ...
https://leetcode.com/problems/is-graph-bipartite/discuss/115487/Java-Clean-DFS-solution-with-Explanation https://leetcode.com/problems/is-graph-bipartite/discuss/115723/C++-short-iterative-solution-with-comments LeetCode All in One 题目讲解汇总(持续更新中...)...
https://leetcode.com/problems/minimum-height-trees/ 有trick 对graph不熟悉。再看几遍。 参考http://bookshadow.com/weblog/2015/11/26/leetcode-minimum-height-trees/ 基本思路是“逐层删去叶子节点,直到剩下根节点为止” 有点类似于拓扑排序
原题链接在这里:https://leetcode.com/problems/is-graph-bipartite/ 题目: Given an undirectedgraph, returntrueif and only if it is bipartite. Recall that a graph isbipartiteif we can split it's set of nodes into two independent subsets A and B such that every edge in the graph has one ...
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Math Binary_Index_Tree Segment Tree Inverse_Element Graph Bit_Manipulation RB_Tree 二维子矩阵求和 二维差分数组 CPP_LANG SQLAbout This repository contains the solutions and explanations to the algorithm problems on LeetCode. Only medium or above are included. All are written in C++/Python and imple...
https://leetcode.com/problems/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/ https://leetcode.com/problems/reachable-nodes-in-subdivided-graph/ 5 Reply 4 Show 1 Replies Reply 3 Reply bzdjsmy Oct 25, 2020 ...