算法與數據結構基礎 - 滑動窗口(Sliding Window)

滑動窗口基礎 滑動窗口常用來解決求字符串子串問題，借助map和計數器，其能在O(n)時間復雜度求子串問題。滑動窗口和雙指針(Two pointers)有些類似，可以理解為往同一個方向走的雙指針。常用 ...

[LeetCode] 1509. Minimum Difference Between Largest and Smallest Value in Three Moves

Given an array nums, you are allowed to choose one element of nums and change it by any value in one ...