# 题目

## 英文

You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.

You may assume the two numbers do not contain any leading zero, except[……]

# 题目

## 英文版

Given an array of integers, return indices of the two numbers such that they add up to a specific target.

You may assume that each input would have exactly one solution, and you may not use the same element twice.

Example:

Given nums = [2, 7, 11, 15], target = 9,

Because nums[0][……]

# 安装过程

## 前言

Oracle 12c 官方的教程只有对Oracle Linux 的相关说明，但是没有对Ubuntu 和Debian的相关说明。而且其安装教程也主要针对Orac[……]

# 问题背景

## 无法更新或安装新的包

You might want to run ‘apt-get -f install’ to correct these.
The following packages have unmet dependencies:
linux-image-server : Depends: linux-image-xxxx-generic but it is not installed
E: Unmet[……]