Leetcode 92: Reverse Linked List II Posted on June 16, 2018 Question Reverse a linked list from position m to n. Do it in one-pass. [Read More] Tags: Leetcode
Leetcode 91: Decode Ways Posted on June 16, 2018 Question A message containing letters from A-Z is being encoded to numbers using the following mapping: [Read More] Tags: Leetcode DP Hard Review
Leetcode 90: Subsets II Posted on June 16, 2018 Question Given a collection of integers that might contain duplicates, nums, return all possible subsets (the power set). [Read More] Tags: Leetcode
Leetcode 89: Gray Code Posted on June 14, 2018 Question The gray code is a binary numeral system where two successive values differ in only one bit. [Read More] Tags: Leetcode
Leetcode 88: Merge Sorted Array Posted on June 14, 2018 Question Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. [Read More] Tags: Leetcode
Leetcode 86: Partition List Posted on June 14, 2018 Question Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. [Read More] Tags: Leetcode
Leetcode 82: Remove Duplicates from Sorted List II Posted on June 14, 2018 Question Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. [Read More] Tags: Leetcode
Leetcode 81: Search in Rotated Sorted Array II Posted on June 14, 2018 Question Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. [Read More] Tags: Leetcode BinarySearch Hard Review
Leetcode 79: Word Search Posted on June 14, 2018 Question Given a 2D board and a word, find if the word exists in the grid. [Read More] Tags: Leetcode Backtracking
Leetcode 78: Subsets Posted on June 13, 2018 Question Given a set of distinct integers, nums, return all possible subsets (the power set). [Read More] Tags: Leetcode Backtracking
Leetcode 77: Combinations Posted on June 13, 2018 Question Given two integers n and k, return all possible combinations of k numbers out of 1 … n. [Read More] Tags: Leetcode Backtracking
Leetcode 75: Sort Colors Posted on June 13, 2018 Question Given an array with n objects colored red, white or blue, sort them in-place so that objects of the same color are adjacent, with the colors in the order red, white and blue. [Read More] Tags: Leetcode
Leetcode 240: Search a 2D Matrix II Posted on June 13, 2018 Question Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: [Read More] Tags: Leetcode
Leetcode 74: Search a 2D Matrix Posted on June 13, 2018 Question Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: [Read More] Tags: Leetcode
Leetcode 73: Set Matrix Zeroes Posted on June 12, 2018 Question Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in-place. [Read More] Tags: Leetcode