Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution, and you may not use the same element twice.
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Leetcode SolutionGiven a string s, find the length of the longest substring without repeating characters.
Longest Substring Without Repeating Characters LeetCode Solution Read More »
Leetcode SolutionGiven an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.
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Leetcode SolutionGiven an integer array nums and an integer k, return true if there are two distinct indices i and j in the array such that nums[i] == nums[j] and abs(i – j) <= k.
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Leetcode SolutionWrite an algorithm to determine if a number n is happy. Return true if n is a happy number, and false if not.
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Leetcode SolutionGiven a non-empty array of integers nums, every element appears twice except for one. Find that single one.
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Leetcode SolutionYou are given a string s and an array of strings words. All the strings of words are of the same length. Return the starting indices of all the concatenated substrings in s. You can return the answer in any order.
Substring with Concatenation of All Words LeetCode Solution Read More »
Leetcode SolutionWrite a program to solve a Sudoku puzzle by filling the empty cells.
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Leetcode SolutionGiven an unsorted integer array nums, return the smallest missing positive integer.
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Leetcode SolutionGiven an array of strings strs, group the anagrams together. You can return the answer in any order.
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