C + + header file

C

#include <stdio.h>//define input/output functions
#include <stdlib.h>//define miscellaneous functions and memory allocation functions
#include <string.h>//String processing

#include <math.h>//defining mathematical functions
#include <time.h>//define functions for TIME
#include <assert.h>//Set insertion point
#include <ctype.h>//character processing

C + +

#include <iostream>//data stream input/output
#include <istream>//Basic input stream
#include <ostream>//Basic output stream

#include <string>//String class

#include <algorithm>//stl General algorithm

#include <list>//stl Linear list container

#include <map>//stl mapping container

#include <queue>//stl Queue container

#include <set>//stl Collection container

#include <vector>//stl dynamic array container

#include <stack>//stl Stack container

#include <cstdio>//define input/output functions
#include <cstdlib>//define miscellaneous functions and memory allocation functions
#include <cstring>//String processing
#include <cmath>//defining mathematical functions

#include <ios>//Basic input/output support
#include <iomanip>/Parametric input/output
#include <sstream>//string-based streaming
#include <fstream>//File input/output

C + + header file