jostree

摘要： Given an array of strings, return all groups of strings that are anagrams.Note: All inputs will be in lower-case.输入一个字符串数组，返回所有回文构词法(anagrams)的字符串，所谓回... 阅读全文

摘要： 有时候我们利用tikz宏包画出的图片后，只想生成一个单图pdf，而且pdf的页面大小与图片相同，以便于以后再次用latex插入。可以与preview宏包进行搭配，页面大小由图像大小决定，可以通过改变\PreviewBorder的值来改变页边界的空白大小。效果如下：代码如下： 1 \documentc... 阅读全文

摘要： You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ... 阅读全文

摘要： Given two binary strings, return their sum (also a binary string).For example,a ="11"b ="1"Return"100".给定两个二进制的字符串，返回他们的和。对于a，b两个二进制字符串，首先通过交换使a的长度小于b... 阅读全文

摘要： Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the sum of ... 阅读全文

摘要： Given an arraySofnintegers, find three integers inSsuch that the sum is closest to a given number, target. Return the sum of the three integers. You m... 阅读全文

摘要： Given an arraySofnintegers, are there elementsa,b,cinSsuch thata+b+c= 0? Find all unique triplets in the array which gives the sum of zero. Note:El... 阅读全文