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话题分类 > 前缀和

#	题目	标签	难度
2067	Number of Equal Count Substrings 🔒	[字符串] [计数] [前缀和]	Medium
2055	蜡烛之间的盘子	[数组] [字符串] [二分查找] [前缀和]	Medium
2025	分割数组的最多方案数	[数组] [哈希表] [计数] [枚举] [前缀和]	Hard
2024	考试的最大困扰度	[字符串] [二分查找] [前缀和] [滑动窗口]	Medium
2021	Brightest Position on Street	[数组] [有序集合] [前缀和]	Medium
2017	网格游戏	[数组] [矩阵] [前缀和]	Medium
1991	找到数组的中间位置	[数组] [前缀和]	Easy
1943	描述绘画结果	[数组] [前缀和]	Medium
1930	长度为 3 的不同回文子序列	[哈希表] [字符串] [前缀和]	Medium
1915	最美子字符串的数目	[位运算] [哈希表] [字符串] [前缀和]	Medium
1895	最大的幻方	[数组] [矩阵] [前缀和]	Medium
1894	找到需要补充粉笔的学生编号	[数组] [二分查找] [前缀和] [模拟]	Medium
1893	检查是否区域内所有整数都被覆盖	[数组] [哈希表] [前缀和]	Easy
1889	装包裹的最小浪费空间	[数组] [二分查找] [前缀和] [排序]	Hard
1878	矩阵中最大的三个菱形和	[数组] [数学] [矩阵] [前缀和] [排序] [堆（优先队列）]	Medium
1872	石子游戏 VIII	[数组] [数学] [动态规划] [博弈] [前缀和]	Hard
1871	跳跃游戏 VII	[双指针] [字符串] [前缀和]	Medium
1862	向下取整数对和	[数组] [数学] [二分查找] [前缀和]	Hard
1856	子数组最小乘积的最大值	[栈] [数组] [前缀和] [单调栈]	Medium
1838	最高频元素的频数	[数组] [二分查找] [前缀和] [滑动窗口]	Medium
1829	每个查询的最大异或值	[位运算] [数组] [前缀和]	Medium
1788	最大化花园的美观度 🔒	[贪心] [数组] [前缀和]	Hard
1744	你能在你最喜欢的那天吃到你最喜欢的糖果吗？	[数组] [前缀和]	Medium
1738	找出第 K 大的异或坐标值	[位运算] [数组] [分治] [矩阵] [前缀和] [快速选择] [堆（优先队列）]	Medium
1737	满足三条件之一需改变的最少字符数	[哈希表] [字符串] [计数] [前缀和]	Medium
1732	找到最高海拔	[数组] [前缀和]	Easy
1712	将数组分成三个子数组的方案数	[数组] [双指针] [二分查找] [前缀和]	Medium
1703	得到连续 K 个 1 的最少相邻交换次数	[贪心] [数组] [前缀和] [滑动窗口]	Hard
1685	有序数组中差绝对值之和	[数组] [数学] [前缀和]	Medium
1674	使数组互补的最少操作次数	[数组] [哈希表] [前缀和]	Medium
1658	将 x 减到 0 的最小操作数	[数组] [哈希表] [二分查找] [前缀和] [滑动窗口]	Medium
1590	使数组和能被 P 整除	[数组] [哈希表] [前缀和]	Medium
1589	所有排列中的最大和	[贪心] [数组] [前缀和] [排序]	Medium
1588	所有奇数长度子数组的和	[数组] [数学] [前缀和]	Easy
1546	和为目标值且不重叠的非空子数组的最大数目	[贪心] [数组] [哈希表] [前缀和]	Medium
1524	和为奇数的子数组数目	[数组] [数学] [动态规划] [前缀和]	Medium
1480	一维数组的动态和	[数组] [前缀和]	Easy
1442	形成两个异或相等数组的三元组数目	[位运算] [数组] [哈希表] [数学] [前缀和]	Medium
1423	可获得的最大点数	[数组] [前缀和] [滑动窗口]	Medium
1413	逐步求和得到正数的最小值	[数组] [前缀和]	Easy
1371	每个元音包含偶数次的最长子字符串	[位运算] [哈希表] [字符串] [前缀和]	Medium
1314	矩阵区域和	[数组] [矩阵] [前缀和]	Medium
1310	子数组异或查询	[位运算] [数组] [前缀和]	Medium
1292	元素和小于等于阈值的正方形的最大边长	[数组] [二分查找] [矩阵] [前缀和]	Medium
1208	尽可能使字符串相等	[字符串] [二分查找] [前缀和] [滑动窗口]	Medium
1177	构建回文串检测	[位运算] [哈希表] [字符串] [前缀和]	Medium
1124	表现良好的最长时间段	[栈] [数组] [哈希表] [前缀和] [单调栈]	Medium
1109	航班预订统计	[数组] [前缀和]	Medium
1094	拼车	[数组] [前缀和] [排序] [模拟] [堆（优先队列）]	Medium
1074	元素和为目标值的子矩阵数量	[数组] [哈希表] [矩阵] [前缀和]	Hard
1004	最大连续1的个数 III	[数组] [二分查找] [前缀和] [滑动窗口]	Medium
995	K 连续位的最小翻转次数	[位运算] [数组] [前缀和] [滑动窗口]	Hard
974	和可被 K 整除的子数组	[数组] [哈希表] [前缀和]	Medium
930	和相同的二元子数组	[数组] [哈希表] [前缀和] [滑动窗口]	Medium
862	和至少为 K 的最短子数组	[队列] [数组] [二分查找] [前缀和] [滑动窗口] [单调队列] [堆（优先队列）]	Hard
798	得分最高的最小轮调	[数组] [前缀和]	Hard
724	寻找数组的中心下标	[数组] [前缀和]	Easy
560	和为 K 的子数组	[数组] [哈希表] [前缀和]	Medium
548	将数组分割成和相等的子数组 🔒	[数组] [前缀和]	Hard
528	按权重随机选择	[数学] [二分查找] [前缀和] [随机化]	Medium
525	连续数组	[数组] [哈希表] [前缀和]	Medium
523	连续的子数组和	[数组] [哈希表] [数学] [前缀和]	Medium
497	非重叠矩形中的随机点	[水塘抽样] [数学] [二分查找] [有序集合] [前缀和] [随机化]	Medium
370	区间加法 🔒	[数组] [前缀和]	Medium
304	二维区域和检索 - 矩阵不可变	[设计] [数组] [矩阵] [前缀和]	Medium
303	区域和检索 - 数组不可变	[设计] [数组] [前缀和]	Easy
238	除自身以外数组的乘积	[数组] [前缀和]	Medium
209	长度最小的子数组	[数组] [二分查找] [前缀和] [滑动窗口]	Medium