include <assert.h> //設定插入點
include <ctype.h> //字符處理
include <errno.h> //定義錯誤碼
include <float.h> //浮點數處理
include <fstream.h> //文件輸入／輸出
include <iomanip.h> //參數化輸入／輸出
include <iostream.h> //數據流輸入／輸出
include <limits.h> //定義各種數據類型最值常量
include <locale.h> //定義本地化函數
include <math.h> //定義數學函數
include <stdio.h> //定義輸入／輸出函數
include <stdlib.h> //定義雜項函數及內存分配函數#include <string.h> //字符串處理
include <strstrea.h> //基于數組的輸入／輸出
include <time.h> //定義關于時間的函數#include <wchar.h> //寬字符處理及輸入／輸出
include <wctype.h> //寬字符分類//////////////////////////////////////////////////////////////////////////標準 C++ （同上的不再注釋）
include <algorithm> //STL 通用算法
include <bitset> //STL 位集容器
include <cctype>#include <cerrno>
include <clocale>
include <cmath>
include <complex> //復數類#include <cstdio>#include <cstdlib>
include <cstring>#include <ctime>
include <deque> //STL 雙端隊列容器
include <exception> //異常處理類
include <fstream>
include <functional> //STL 定義運算函數（代替運算符）
include <limits>#include <list> //STL 線性列表容器#include <map> //STL 映射容器
include <iomanip>#include <ios> //基本輸入／輸出支持#include <iosfwd> //輸入／輸出系統使用的前置聲明
include <iostream>
include <istream> //基本輸入流
include <ostream> //基本輸出流
include <queue> //STL 隊列容器
include <set> //STL 集合容器#include <sstream> //基于字符串的流
include <stack> //STL 堆棧容器
include <stdexcept> //標準異常類
include <streambuf> //底層輸入／輸出支持
include <string> //字符串類
include <utility> //STL 通用模板類
include <vector> //STL 動態數組容器
include <cwchar>
include <cwctype>using namespace std;//////////////////////////////////////////////////////////////////////////C99 增加
include <complex.h> //復數處理
include <fenv.h> //浮點環境
include <inttypes.h> //整數格式轉換
include <stdbool.h> //布爾環境
include <stdint.h> //整型環境
include <tgmath.h> //通用類型數學宏