滑动窗口（状态滚动更新）模式

无重复字符的最长子串

Find the length of the longest substring without repeating characters using a sliding window and hash map to track state…

串联所有单词的子串

Find all starting indices of substrings in a string that are concatenations of a given list of words.

最小覆盖子串

Find the smallest substring of s containing all characters from t using a sliding window with running state updates for …

重复的DNA序列

Solve Repeated DNA Sequences by sliding a length-10 window and tracking seen patterns with a hash set or bitmask.

存在重复元素 III

The problem involves finding a pair of indices in an array where the index and value differences are within given limits…

滑动窗口最大值

Solve the "Sliding Window Maximum" problem using efficient techniques like the sliding window, deque, and priority queue…

至少有 K 个重复字符的最长子串

Find the length of the longest substring where every character appears at least k times using sliding window and divide-…

替换后的最长重复字符

Find the length of the longest substring after at most k replacements using a sliding window and character count trackin…

找到字符串中所有字母异位词

Find all starting indices of p's anagrams in s using sliding window and hash table approach.

子数组最大平均数 I

Find the maximum average of any contiguous subarray of length k in a given integer array using a sliding window approach…

K 连续位的最小翻转次数

Determine the minimum number of k-length consecutive bit flips needed to convert all zeros to ones in a binary array eff…

子串能表示从 1 到 N 数字的二进制串

Check if binary string contains all integers from 1 to n as substrings, leveraging sliding window and bit manipulation t…

移动石子直到连续 II

Determine the minimum and maximum moves to make stones consecutive using sliding window and endpoint adjustments efficie…

爱生气的书店老板

Maximize satisfied customers in a bookstore by strategically suppressing the owner's grumpy minutes using a sliding wind…

单字符重复子串的最大长度

Find the maximum length of a repeated character substring after swapping two characters using a sliding window approach …

替换子串得到平衡字符串

Determine the minimum substring length to replace in order to balance a string of Q, W, E, and R characters efficiently.

子串的最大出现次数

Find the maximum number of occurrences of any valid substring in a given string with specific constraints on letter coun…

大小为 K 且平均值大于等于阈值的子数组数目

Given an array, find the number of sub-arrays of size k with an average greater than or equal to a given threshold.

包含所有三种字符的子字符串数目

Count all substrings containing at least one of each character a, b, and c using a sliding window approach efficiently.

可获得的最大点数

Maximize your score by selecting k cards from the beginning or end of the array using a sliding window approach.

绝对差不超过限制的最长连续子数组

Find the longest subarray with elements whose absolute difference is within a specified limit using a sliding window app…

定长子串中元音的最大数目

Find the maximum number of vowels in a substring of a given length in a string using a sliding window approach.

满足不等式的最大值

Max Value of Equation asks to find the maximum value of a specific equation on a set of 2D points using sliding window t…

可见点的最大数目

Determine the maximum number of points visible from a fixed location within a given angle using a sliding window approac…