BRPOP(Blocking List Pop)은
Redis에서 사용되는 명령어 중 하나로
블로킹 방식으로 Redis List에서 요소를 팝(pop)하는 데 사용된다.
Given an array of points where points[i] = [xi, yi] represents a point on the X-Y plane and an integer k, return the k closest points to the origin (0, 0).
The distance between two points on the X-Y plane is the Euclidean distance (i.e., √(x1 - x2)2 + (y1 - y2)2).
You may return the answer in any order. The answer is guaranteed to be unique (except for the order that it is in).
Given a string s, find the length of the longest substring without repeating characters.
저번 글에 이어 Specialized Indexes에 대해 알아본다.
Specialized Indexes는 단어 뜻 그대로
매우 특별한 상황에 맞춰진 몇 가지 특화된 Index 유형이다.
보편적으로 사용할 수는 없지만 특정 상황에서 유용하다.
지금까지 살펴본 Index와 달리
이러한 특수 Index 중 다수는 B+ 트리의 지원을 받지 않는다.
You are given an array of non-overlapping intervals intervals where intervals[i] = [starti, endi] represent the start and the end of the ith interval and intervals is sorted in ascending order by starti. You are also given an interval newInterval = [start, end] that represents the start and end of another interval.
Insert newInterval into intervals such that intervals is still sorted in ascending order by starti and intervals still does not have any overlapping intervals (merge overlapping intervals if necessary).
Return intervals after the insertion.
Given an m x n binary matrix mat, return the distance of the nearest 0 for each cell.
The distance between two adjacent cells is 1.