# LeetCode 15. 3Sum

Description https://leetcode.com/problems/3sum/description/ Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the…

# LeetCode 4. Median of Two Sorted Arrays

Description https://leetcode.com/problems/median-of-two-sorted-arrays/ There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of…

# LeetCode 3. Longest Substring Without Repeating Characters

Description https://leetcode.com/problems/longest-substring-without-repeating-characters/ Given a string, find the length of the longest substring without repeating characters. Examples: Given “abcabcbb”, the answer…

# LeetCode 1. Two Sum

Description https://leetcode.com/problems/two-sum/ Given an array of integers, return indices of the two numbers such that they add up to a…

# LeetCode 2. Add Two Numbers

Description https://leetcode.com/problems/add-two-numbers/ You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order…