1525.Number of Good Ways to Split a String

2021-09-25

Problem description:

You are given a string s, a split is called good if you can split s into 2 non-empty strings p and q where its concatenation is equal to s and the number of distinct letters in p and q are the same.

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1423.Maximum Points You Can Obtain from Cards

2021-09-25

Problem description:

There are several cards arranged in a row, and each card has an associated number of points. The points are given in the integer array cardPoints.

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1293.Shortest Path in a Grid with Obstacles Elimination

2021-09-25

Problem description:

You are given an m x n integer matrix grid where each cell is either 0 (empty) or 1 (obstacle). You can move up, down, left, or right from and to an empty cell in one step.

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1197.Minimum Knight Moves

2021-09-25

Problem description:

In an infinite chess board with coordinates from -infinity to +infinity, you have a knight at square [0, 0].

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735.Asteroid Collision

2021-09-25

Problem description:

We are given an array asteroids of integers representing asteroids in a row.

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443.String Compression

2021-09-24

Problem description:

Given an array of characters chars, compress it using the following algorithm:

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724.Find Pivot Index

2021-09-24

Problem description:

Given an array of integers nums, calculate the pivot index of this array.

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934.Shortest Bridge

2021-09-24

Problem description:

In a given 2D binary array grid, there are two islands. (An island is a 4-directionally connected group of 1s not connected to any other 1s.)

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1048.Longest String Chain

2021-09-24

Problem description:

You are given an array of words where each word consists of lowercase English letters.

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1559.Detect Cycles in 2D Grid

2021-09-24

Problem description:

Given a 2D array of characters grid of size m x n, you need to find if there exists any cycle consisting of the same value in grid.

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