Given a target number, a non-negative integer k and an integer array A sorted in ascending order, find the k closest numbers to target in A, sorted in ascending order by the difference between the number and target. Otherwise, sorted in ascending ord…

Given a target number and an integer array A sorted in ascending order, find the index i in A such that A[i] is closest to the given target. Return -1 if there is no element in the array. 分析 使用binary Search 找到可以插入 target 的 position, 例如是 i, 那么,从i(包括i)…

Merge K sorted Array 跟Merge K sorted lists不同在于,从PQ里poll出来以后不知道下一个需要被加入PQ的是哪一个 所以需要写一个wrapper class package fbPractise; import java.util.*; public class MergeKLists { static class Pair { int listIndex; int idInList; int value; public Pair(int l, int i…

题目如下: Given an array of integers nums and a positive integer k, find whether it's possible to divide this array into sets of k consecutive numbersReturn True if its possible otherwise return False. Example 1: Input: nums = [1,2,3,3,4,4,5,6], k = 4 Ou…

Given a sorted array, two integers k and x, find the k closest elements to x in the array. The result should also be sorted in ascending order. If there is a tie, the smaller elements are always preferred. Example 1: Input: [1,2,3,4,5], k=4, x=3 Outp…

Given a sorted array, two integers k and x, find the k closest elements to x in the array. The result should also be sorted in ascending order. If there is a tie, the smaller elements are always preferred. Example 1: Input: [1,2,3,4,5], k=4, x=3 Outp…

Given a sorted array, two integers k and x, find the kclosest elements to x in the array. The result should also be sorted in ascending order. If there is a tie, the smaller elements are always preferred. Example 1: Input: [1,2,3,4,5], k=4, x=3 Outpu…

We have a list of points on the plane.  Find the K closest points to the origin (0, 0). (Here, the distance between two points on a plane is the Euclidean distance.) You may return the answer in any order.  The answer is guaranteed to be unique (exce…

Given a sorted array, two integers k and x, find the k closest elements to x in the array. The result should also be sorted in ascending order. If there is a tie, the smaller elements are always preferred. Example 1: Input: [1,2,3,4,5], k=4, x=3 Outp…

Given a sorted array, two integers k and x, find the k closest elements to x in the array. The result should also be sorted in ascending order. If there is a tie, the smaller elements are always preferred. Example 1: Input: [1,2,3,4,5], k=4, x=3 Outp…