James Pan

原题网址：https://leetcode.com/problems/search-a-2d-matrix-ii/Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties:Integers in e

原题网址：https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a specific tar

原题网址：https://leetcode.com/problems/meeting-rooms/Given an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2],...] (si < ei), determine if a person could attend

原题网址：https://leetcode.com/problems/count-of-smaller-numbers-after-self/You are given an integer array nums and you have to return a new counts array. The counts array has the property where coun

原题网址：https://leetcode.com/problems/find-k-pairs-with-smallest-sums/You are given two integer arrays nums1 and nums2 sorted in ascending order and an integer k.Define a pair (u,v) which consists