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First Update
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commit
6b742a5393
9
.vscode/settings.json
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9
.vscode/settings.json
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{
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"files.associations": {
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"initializer_list": "cpp",
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"type_traits": "cpp",
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"xstring": "cpp",
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"xtree": "cpp",
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"xutility": "cpp"
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}
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}
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Algorithm/BubbleSort.h
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Algorithm/BubbleSort.h
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// 冒泡排序
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void BubbleSort(vector<int>& v) {
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int temp;
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for (int i = 0; i < v.size() - 1; ++i) {
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for (int j = 0; j < v.size() - 1 - i; ++j) {
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if (v[j] > v[j + 1]) { // 从小到大
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temp = v[j];
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v[j] = v[j + 1];
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v[j + 1] = temp;
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}
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}
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}
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}
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Algorithm/BubbleSort_orderly.h
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Algorithm/BubbleSort_orderly.h
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// 冒泡排序(跳过有序的改进版)
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void BubbleSort_orderly(vector<int>& v) {
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int temp;
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bool orderly = false;
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for (int i = 0; i < v.size() - 1 && !orderly; ++i) {
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orderly = true;
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for (int j = 0; j < v.size() - 1 - i; ++j) {
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if (v[j] > v[j + 1])
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{
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orderly = false;
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temp = v[j];
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v[j] = v[j + 1];
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v[j + 1] = temp;
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}
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}
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}
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}
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Problems/LeetcodeProblems/best-time-to-buy-and-sell-stock.h
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Problems/LeetcodeProblems/best-time-to-buy-and-sell-stock.h
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class Solution {
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public:
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int maxProfit(vector<int>& prices) {
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int left = 0, right = 0;
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int max = 0, temp = 0;
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for(auto i = 0; i < prices.size(); ++i) {
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right = i;
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temp = prices[right] - prices[left];
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if(temp < 0) left = i;
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if(max < temp) max = temp;
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}
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return max;
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}
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};
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Problems/LeetcodeProblems/container-with-most-water.h
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Problems/LeetcodeProblems/container-with-most-water.h
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class Solution {
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public:
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int maxArea(vector<int>& height) {
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int left = 0, right = height.size()-1;
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int max = 0, temp = 0;
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while(left < right) {
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temp = (right - left) * (height[left] < height[right] ? height[left] : height[right]);
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if(max < temp) max = temp;
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if(height[left] < height[right]) {
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do{
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left++;
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} while(left < right && height[left-1] >= height[left]);
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}
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else {
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do{
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right--;
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} while(left < right && height[right] <= height[right+1]);
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}
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}
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return max;
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}
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};
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Problems/LeetcodeProblems/majority-element.h
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Problems/LeetcodeProblems/majority-element.h
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#include <map>
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class Solution {
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public:
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int majorityElement(vector<int>& nums) {
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int n = nums.size();
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map<int, int> m_times;
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int moreThanTimes = n / 2;
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for (auto i = 0; i < n; ++i) {
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auto it = m_times.find(nums[i]);
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if (it == m_times.end()) {
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// No existence in map, insert
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m_times.insert(std::pair<int, int>(nums[i], 1));
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it = m_times.find(nums[i]);
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}
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// Is it more than ⌊ n/2 ⌋ times ?
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if ((*it).second > moreThanTimes) {
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return (*it).first;
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}
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else {
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(*it).second++;
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}
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}
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// Can't find
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return -1;
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}
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};
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Problems/LeetcodeProblems/maximum-subarray.h
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Problems/LeetcodeProblems/maximum-subarray.h
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#define MIN_INT -2147483648
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class Solution {
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public:
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int maxSubArray(vector<int>& nums) {
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int max = MIN_INT, temp = 0;
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for(auto i = 0; i < nums.size(); ++i) {
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temp += nums[i];
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if(temp > max) max = temp;
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if(temp < 0) temp = 0;
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}
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return max;
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}
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};
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Problems/LeetcodeProblems/move-zeroes.h
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Problems/LeetcodeProblems/move-zeroes.h
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class Solution {
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public:
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void moveZeroes(vector<int>& nums) {
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int left = 0, right = 0;
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for(; left < nums.size() && nums[left] != 0; left++);
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for(right = left; right < nums.size(); right++) {
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if(nums[right] == 0) continue;
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nums[left++] = nums[right];
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}
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while(left < nums.size()) nums[left++] = 0;
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}
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};
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Problems/LeetcodeProblems/two-sum.h
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Problems/LeetcodeProblems/two-sum.h
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class Solution {
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public:
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vector<int> twoSum(vector<int>& nums, int target) {
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vector<int> sum;
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for(auto i = 0; i < nums.size(); i++)
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{
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for(auto j = i+1; j < nums.size(); j++)
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{
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if(i == j) continue;
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if(nums[i] + nums[j] != target) continue;
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sum.push_back(i);
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sum.push_back(j);
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return sum;
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}
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}
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return sum;
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}
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};
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152
README.md
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152
README.md
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## 目录
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* [C/C++](#)
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* [STL](#)
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* [数据结构](#)
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* [算法](#)
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* [Problems](#)
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* [操作系统](#)
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* [计算机网络](#)
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* [数据库](#)
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* [设计模式](#)
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* [网络编程](#)
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* [海量数据处理](#)
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* [其他](#)
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* [书籍](#)
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* [复习刷题网站](##)
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* [面试题目经验](##)
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----
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## C/C++
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* 封装
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* 继承
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* 多态
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* 虚函数
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* 内存分配和管理
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* extern"C"
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* const作用
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* 什么是面向对象(OOP)
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* new和malloc的区别
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* 运行时类型识别(RTTI)
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* 友元类和友元函数
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* struct和class的区别
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## STL
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## 数据结构
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## 算法
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### 排序
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* [冒泡排序](Algorithm/BubbleSort.h)
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* [冒泡排序(跳过有序的改进版)](Algorithm/BubbleSort_orderly.h)
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## Problems
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### Leetcode Problems
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#### Array
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* [1. Two Sum](Problems/LeetcodeProblems/two-sum.h)
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* [4. Median of Two Sorted Arrays](Problems/LeetcodeProblems/median-of-two-sorted-arrays.h)
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* [11. Container With Most Water](Problems/LeetcodeProblems/container-with-most-water.h)
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* [53. Maximum Subarray](Problems/LeetcodeProblems/maximum-subarray.h)
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* [121. Best Time to Buy and Sell Stock](Problems/LeetcodeProblems/best-time-to-buy-and-sell-stock.h)
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* [169. Majority Element](Problems/LeetcodeProblems/majority-element.h)
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* [283. Move Zeroes](Problems/LeetcodeProblems/move-zeroes.h)
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## 操作系统
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* 进程间的通信方式(管道、有名管道、信号、共享内存、消息队列、信号量、套接字、文件)
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## 计算机网络
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* TCP/IP
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* TCP协议
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* TCP三次握手
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* TCP和UDP的区别
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* socket套接字
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* HTTP返回码
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### HTTP
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[runoob . HTTP教程](http://www.runoob.com/http/http-tutorial.html)
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#### HTTP 请求方法
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* GET:请求指定的页面信息,并返回实体主体
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* HEAD:类似于get请求,只不过返回的响应中没有具体的内容,用于获取报头
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* POST:向指定资源提交数据进行处理请求(例如提交表单或者上传文件)。数据被包含在请求体中。POST请求可能会导致新的资源的建立和/或已有资源的修改。
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* PUT:从客户端向服务器传送的数据取代指定的文档的内容。
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* DELETE:请求服务器删除指定的页面
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* CONNECT:HTTP/1.1协议中预留给能够将连接改为管道方式的代理服务器
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* OPTIONS:允许客户端查看服务器的性能
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* TRACE:回显服务器收到的请求,主要用于测试或诊断
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#### HTTP 状态码
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* 200 OK: 请求成功
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* 301 Moved Permanently: 永久移动。请求的资源已被永久的移动到新URI,返回信息会包括新的URI,浏览器会自动定向到新URI。今后任何新的请求都应使用新的URI代替
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* 400 Bad Request: 客户端请求的语法错误,服务器无法理解
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* 401 Unauthorized: 请求要求用户的身份认证
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* 403 Forbidden: 服务器理解请求客户端的请求,但是拒绝执行此请求
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* 404 Not Found: 服务器无法根据客户端的请求找到资源(网页)。通过此代码,网站设计人员可设置"您所请求的资源无法找到"的个性页面
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* 408 Request Timeout: 服务器等待客户端发送的请求时间过长,超时
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* 500 Internal Server Error: 服务器内部错误,无法完成请求
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* 503 Service Unavailable: 由于超载或系统维护,服务器暂时的无法处理客户端的请求。延时的长度可包含在服务器的Retry-After头信息中
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* 504 Gateway Timeout: 充当网关或代理的服务器,未及时从远端服务器获取请求
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## 数据库
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* 数据库事务四大特性:原子性、一致性、分离性、持久性
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* 数据库索引:顺序索引 B+树索引 hash索引
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[MySQL索引背后的数据结构及算法原理](http://blog.codinglabs.org/articles/theory-of-mysql-index.html)
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## 设计模式
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## 网络编程
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## 海量数据处理
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* [ 海量数据处理面试题集锦](http://blog.csdn.net/v_july_v/article/details/6685962)
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* [十道海量数据处理面试题与十个方法大总结](http://blog.csdn.net/v_JULY_v/article/details/6279498)
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## 其他
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----
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## 书籍
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* 《剑指Offer》
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* 《编程珠玑》
|
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* 《深度探索C++对象模型》
|
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* 《Effective C++》
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* 《More Effective C++》
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* 《深入理解C++11》
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* 《STL源码剖析》
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* 《深入理解计算机系统》
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* 《TCP/IP网络编程》
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* 《程序员的自我修养》
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## 复习刷题网站
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* [leetcode](https://leetcode.com/)
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* [牛客网](https://www.nowcoder.net/)
|
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* [慕课网](https://www.imooc.com/)
|
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* [菜鸟教程](http://www.runoob.com/)
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## 面试题目经验
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* [知乎 . 互联网公司最常见的面试算法题有哪些?](https://www.zhihu.com/question/24964987)
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||||
* [知乎 . 面试 C++ 程序员,什么样的问题是好问题?](https://www.zhihu.com/question/20184857)
|
||||
* [cnblogs . C++面试集锦( 面试被问到的问题 )](https://www.cnblogs.com/Y1Focus/p/6707121.html)
|
||||
* [cnblogs . C/C++ 笔试、面试题目大汇总](https://www.cnblogs.com/fangyukuan/archive/2010/09/18/1829871.html)
|
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* [cnblogs . 常见C++面试题及基本知识点总结(一)](https://www.cnblogs.com/LUO77/p/5771237.html)
|
||||
* [CSDN . 全面整理的C++面试题](http://blog.csdn.net/ljzcome/article/details/574158)
|
||||
* [CSDN . 百度研发类面试题(C++方向)](http://blog.csdn.net/Xiongchao99/article/details/74524807?locationNum=6&fps=1)
|
||||
* [CSDN . c++常见面试题30道](http://blog.csdn.net/fakine/article/details/51321544)
|
||||
* [CSDN . 腾讯2016实习生面试经验(已经拿到offer)](http://blog.csdn.net/onever_say_love/article/details/51223886)
|
||||
* [segmentfault . C++常见面试问题总结](https://segmentfault.com/a/1190000003745529)
|
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