Valid Parentheses
Given a string containing just the characters '('
, ')'
, '{'
, '}'
, '['
and ']'
, determine if the input string is valid.
敲石101下
Given a string containing just the characters '('
, ')'
, '{'
, '}'
, '['
and ']'
, determine if the input string is valid.
The Hamming distance between two integers is the number of positions at which the corresponding bits are different.
more >>Write a function that takes an unsigned integer and returns the number of ‘1’ bits it has (also known as the Hamming weight).
more >>Roman numerals are represented by seven different symbols: I
, V
, X
, L
, C
, D
and M
.
Design a stack that supports push, pop, top, and retrieving the minimum element in constant time.
more >>tag:
缺失模块。
1、请确保node版本大于6.2
2、在博客根目录(注意不是yilia根目录)执行以下命令:
npm i hexo-generator-json-content --save
3、在根目录_config.yml里添加配置:
jsonContent: meta: false pages: false posts: title: true date: true path: true text: false raw: false content: false slug: false updated: false comments: false link: false permalink: false excerpt: false categories: false tags: true