865.Smallest Subtree with all the Deepest Nodes

2021-09-24

Problem description:

Given the root of a binary tree, the depth of each node is the shortest distance to the root.

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1011.Capacity To Ship Packages Within D Days

2021-09-21

Problem description:

A conveyor belt has packages that must be shipped from one port to another within days days.

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843.Guess the Word

2021-09-21

Problem description:

This is an interactive problem.

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548.Split Array with Equal Sum

2021-09-21

Problem description:

Given an integer array nums of length n, return true if there is a triplet (i, j, k) which satisfies the following conditions:

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1509.Minimum Difference Between Largest and Smallest Value in Three Moves

2021-09-21

Problem description:

Given an array nums, you are allowed to choose one element of nums and change it by any value in one move.

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1277.Count Square Submatrices with All Ones

2021-09-21

Problem description:

Given a m * n matrix of ones and zeros, return how many square submatrices have all ones.

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1161.Maximum Level Sum of a Binary Tree

2021-09-21

Problem description:

Given the root of a binary tree, the level of its root is 1, the level of its children is 2, and so on.

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359.Logger Rate Limiter

2021-09-21

Problem description:

Design a logger system that receives a stream of messages along with their timestamps. Each unique message should only be printed at most every 10 seconds (i.e. a message printed at timestamp t will prevent other identical messages from being printed until timestamp t + 10).

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329.Longest Increasing Path in a Matrix

2021-09-21

Problem description:

Given an m x n integers matrix, return the length of the longest increasing path in matrix.

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778.Swim in Rising Water

2021-09-20

Problem description:

You are given an n x n integer matrix grid where each value grid[i][j] represents the elevation at that point (i, j).

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