標準 C++
#i nclude <algorithm>
//STL
通用算法
#i nclude <bitset>
//STL
位集容器
#i nclude <cctype>??????????????????//字符處理
#i nclude <cerrno> //定義錯誤碼
#i nclude <clocale> //定義本地化函數
#i nclude <cmath>???????????????????? //定義數學函數
#i nclude <complex>
//
復數類
#i nclude <cstdio> //定義輸入/輸出函數
#i nclude <cstdlib> //定義雜項函數及內存分配函數
#i nclude <cstring> //字符串處理
#i nclude <ctime> //定義關于時間的函數
#i nclude <deque>
//STL
雙端隊列容器
#i nclude <exception>
//
異常處理類
#i nclude <fstream> //文件輸入/輸出
#i nclude <functional>
//STL
定義運算函數(代替運算符)
#i nclude <limits> //定義各種數據類型最值常量
#i nclude <list>
//STL
線性列表容器
#i nclude <map>
//STL
映射容器
#i nclude <iomanip> //參數化輸入/輸出
#i nclude <ios>
//
基本輸入/輸出支持
#i nclude <iosfwd>
//
輸入/輸出系統使用的前置聲明
#i nclude <iostream>??????????????? //數據輸入/輸出流
#i nclude <istream>
//
基本輸入流
#i nclude <ostream>
//
基本輸出流
#i nclude <queue>
//STL
隊列容器
#i nclude <set>
//STL
集合容器
#i nclude <sstream>
//
基于字符串的流
#i nclude <stack>
//STL
堆棧容器
#i nclude <stdexcept>
//
標準異常類
#i nclude <streambuf>
//
底層輸入/輸出支持
#i nclude <string>
//
字符串類
#i nclude <utility>
//STL
通用模板類
#i nclude <vector>
//STL
動態數組容器
#i nclude <cwchar> //寬字符處理及輸入/輸出
#i nclude <cwctype> //寬字符分類
using namespace std;???????????????? //引入命名空間