2022 - Page 2 Of 8 - TO THE INNOVATION

Sudoku Solver LeetCode Solution

Leetcode Solution / Array, Backtracking, C++ Solution, Hash Table, Java Solution, JavaScript Solution, LeetCode Solution, Matrix, Python Solution, Snapchat, Uber

Write a program to solve a Sudoku puzzle by filling the empty cells.

Search in Rotated Sorted Array LeetCode Solution

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Given the array nums after the possible rotation and an integer target, return the index of target if it is in nums, or -1 if it is not in nums.

Next Permutation LeetCode Solution

Leetcode Solution / Array, C++ Solution, Google, Java Solution, JavaScript Solution, LeetCode Solution, Medium, Python Solution, Two Pointers

Given an array of integers nums, find the next permutation of nums.

Substring with Concatenation of All Words LeetCode Solution

Leetcode Solution / C++ Solution, Hard, Hash Table, Java Solution, JavaScript Solution, LeetCode Solution, Python Solution, Sliding Window, String

You 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.

Divide Two Integers LeetCode Solution

Leetcode Solution / Bit-Manipulation, C++ Solution, Java Solution, JavaScript Solution, LeetCode Solution, Math, Medium, Python Solution

Given two integers dividend and divisor, divide two integers without using multiplication, division, and mod operator. Return the quotient after dividing dividend by divisor.

Find the Index of the First Occurrence in a String LeetCode Solution

Leetcode Solution / C++ Solution, Java Solution, JavaScript Solution, LeetCode Solution, Medium, Python Solution, String, String Matching, Two Pointers

Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.

Remove Element LeetCode Solution

Leetcode Solution / Array, C++ Solution, Easy, Java Solution, JavaScript Solution, LeetCode Solution, Python Solution, Two Pointers

Given an integer array nums and an integer val, remove all occurrences of val in nums in-place. The relative order of the elements may be changed.

Reverse Nodes in k-Group LeetCode Solution

Leetcode Solution / C++ Solution, Facebook, Hard, Java Solution, JavaScript Solution, LeetCode Solution, Linked List, Microsoft, Python Solution

Given the head of a linked list, reverse the nodes of the list k at a time, and return the modified list.

Merge Two Sorted Lists LeetCode Solution

Leetcode Solution / Amazon, Apple, C++ Solution, Easy, Java Solution, JavaScript Solution, LeetCode Solution, Linked List, Linkedin, Microsoft, Python Solution

You are given the heads of two sorted linked lists list1 and list2. Merge the two lists in a one sorted list. The list should be made by splicing together the nodes of the first two lists. Return the head of the merged linked list.

Climbing Stairs LeetCode Solution

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You are climbing a staircase. It takes n steps to reach the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?

Reverse Linked List LeetCode Solution

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Given the head of a singly linked list, reverse the list, and return the reversed list.

Delete Node in a Linked List LeetCode Solution

Leetcode Solution / Adobe, Apple, C++ Solution, Java Solution, JavaScript Solution, LeetCode Solution, Linked List, Medium, Microsoft, Python Solution

There is a singly-linked list head and we want to delete a node node in it. Delete the given node

Add Digits LeetCode Solution

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Given an integer num, repeatedly add all its digits until the result has only one digit, and return it.

Nim Game LeetCode Solution

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Given n, the number of stones in the heap, return true if you can win the game assuming both you and your friend play optimally, otherwise return false.

Regular Expression Matching LeetCode Solution

Leetcode Solution / Airbnb, Backtracking, C++ Solution, dynamic programming, Facebook, Google, Hard, Java Solution, JavaScript Solution, LeetCode Solution, Python Solution, String, Twitter, Uber

Given an input string s and a pattern p, implement regular expression matching with support for ‘.’ and ‘*’ where ‘.’ Matches any single character and ‘*’ Matches zero or more of the preceding element.