1650. Lowest Common Ancestor of a Binary Tree III

2021-06-14

Problem description:

Given two nodes of a binary tree p and q, return their lowest common ancestor (LCA).

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827. Making A Large Island

2021-06-13

Problem description:

You are given an n x n binary matrix grid. You are allowed to change at most one 0 to be 1.

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1762. Buildings With an Ocean View

2021-06-13

Problem description:

There are n buildings in a line. You are given an integer array heights of size n that represents the heights of the buildings in the line.

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1263. Minimum Moves to Move a Box to Their Target Location

2021-06-11

Problem description:

Storekeeper is a game in which the player pushes boxes around in a warehouse trying to get them to target locations.

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360. Sort Transformed Array

2021-06-09

Problem description:

Given a sorted integer array nums and three integers a, b and c, apply a quadratic function of the form f(x) = ax2 + bx + c to each element nums[i] in the array, and return the array in a sorted order.

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68. Text Justification

2021-06-09

Problem description:

Given an array of words and a width maxWidth, format the text such that each line has exactly maxWidth characters and is fully (left and right) justified.

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611. Valid Triangle Number

2021-06-08

Problem description:

Given an integer array nums, return the number of triplets chosen from the array that can make triangles if we take them as side lengths of a triangle.

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254. Factor Combinations

2021-06-08

Problem description:

Numbers can be regarded as the product of their factors.

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366. Find Leaves of Binary Tree

2021-06-07

Problem description:

Given the root of a binary tree, collect a tree’s nodes as if you were doing this:

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243. Shortest Word Distance

2021-06-07

Problem description:

Given an array of strings wordsDict and two different strings that already exist in the array word1 and word2, return the shortest distance between these two words in the list.

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