2249. 计算圆内格点数目
Medium | Array, Hash Table, Math, Geometry, Enumeration
Medium
2250. 统计包含每个点的矩形数目
Medium | Array, Hash Table, Binary Search, Binary Indexed Tree, Sorting
2256. 最小平均差
Medium | Array, Prefix Sum
2260. 拿起连续卡牌的最小数量
Medium | Array, Hash Table, Sliding Window
2265. 统计子树中节点与子树平均值相等的节点数
Medium | Tree, Depth-First Search, Binary Tree
2266. 统计按键次数
Medium | Hash Table, Math, String, Dynamic Programming
2270. 分割数组的方案数
Medium | Array, Prefix Sum
2271. 地毯覆盖的最多白色瓷砖数
Medium | Array, Binary Search, Greedy, Sliding Window, Sorting, Prefix Sum
2274. 没有特殊楼层的最大连续楼层数
Medium | Array, Sorting
2275. 按位与结果大于零的最大组合
Medium | Array, Hash Table, Bit Manipulation, Counting