归档 2018

题目描述：

LeetCode 829. Consecutive Numbers Sum

Given a positive integer N, how many ways can we write it as a sum of consecutive positive integers?

Example 1:

Input: 5
Output: 2
Explanation: 5 = 5 = 2 + 3

Example ...

题目描述：

LeetCode 831. Masking Personal Information

We are given a personal information string S, which may represent either an email address or a phone number.

We would like to mask this personal information according to the following rules:

1. Email address:

We define ...

题目描述：

LeetCode 830. Positions of Large Groups

In a string S of lowercase letters, these letters form consecutive groups of the same character.

For example, a string like S = "abbxxxxzyy" has the groups "a", "bb", "xxxx", ...

题目描述：

LeetCode 827. Making A Large Island

In a 2D grid of 0s and 1s, we change at most one 0 to a 1.

After, what is the size of the largest island? (An island is a 4-directionally ...

题目描述：

LeetCode 826. Most Profit Assigning Work

We have jobs: difficulty[i] is the difficulty of the ith job, and profit[i] is the profit of the ith job. 

Now we have some workers. worker[i] is the ability of the  ...