Weekly Contest 300 (4/4)
Weekly Contest 299 (未参加,睡过了)
2319. Check if Matrix Is X-Matrix
2320. Count Number of Ways to Place Houses
2321. Maximum Score Of Spliced Array
2322. Minimum Score After Removals on a Tree
Biweekly Contest 81 (4/4)
2316. Count Unreachable Pairs of Nodes in an Undirected Graph
2317. Maximum XOR After Operations
2318. Number of Distinct Roll Sequences

本周错过了 WeeklyContest299,但参加了 BiweeklyContest81。比赛题目包括矩阵问题、房屋放置计数、数组拼接得分最大化和树结构的节点移除最小得分。挑战涉及算法和数据结构的运用,如矩阵操作、图论和树的遍历。
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