309. Best Time to Buy and Sell Stock with Cooldown

2018-08-20

Problem description:

Say you have an array for which the ith element is the price of a given stock on day i.

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121. Best Time to Buy and Sell Stock

2018-08-20

Problem description:

Say you have an array for which the ith element is the price of a given stock on day i.

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67. Add Binary

2018-08-20

Problem description:

Given two binary strings, return their sum (also a binary string).

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283. Move Zeroes

2018-08-20

Problem description:

Given an array nums, write a function to move all 0’s to the end of it while maintaining the relative order of the non-zero elements.

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29. Divide Two Integers

2018-08-20

Problem description:

Given two integers dividend and divisor, divide two integers without using multiplication, division and mod operator.

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621. Task Scheduler

2018-08-19

Problem description:

Given a char array representing tasks CPU need to do. It contains capital letters A to Z where different letters represent different tasks.Tasks could be done without original order. Each task could be done in one interval. For each interval, CPU could finish one task or just be idle.

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253. Meeting Rooms II

2018-08-19

Problem description:

Given an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2],…] (si < ei), find the minimum number of conference rooms required.

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91. Decode Ways

2018-08-19

Problem description:

A message containing letters from A-Z is being encoded to numbers using the following mapping:

1
2
3
4
'A' -> 1
'B' -> 2
...
'Z' -> 26

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65. Valid Number

2018-08-18

Problem description:

Validate if a given string is numeric.

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10. Regular Expression Matching

2018-08-18

Problem description:

Given an input string (s) and a pattern (p), implement regular expression matching with support for ‘.’ and ‘*’.

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