Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in the array which gives the sum of…
Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example 1:…
Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer…
Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may…
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