Sign in Get Started

using namespace std in c++

Awgiedawgie 
#include <iostream>

using namespace std;

int main()
{
    cout << "Hello World";
    system("pause");
    return 0;
    
}
View another examples Add Own solution
Log in, to leave a comment

3
2
Krish 100200 points 

                                    #include &lt;iostream&gt;
using namespace std;
namespace square{
	int x;
	int y;
}
int main(){
	using namespace square;
	x = 10;
	y = 0;
	cout &lt;&lt; x &lt;&lt; y &lt;&lt; endl;
}

3 (2 Votes)
0
4.67
3
Krish 100200 points 

                                    using namespace std;

4.67 (3 Votes)
0
4
10
Awgiedawgie 440220 points 

                                    //namespace is a declarative region to provide scope for identifiers
#include &lt;bits/stdc++.h&gt;

using namespace std; //including namespace std for cin and cout
//my custom namespace for variables and functions
namespace abc
{
  void fun()
  {
    cout&lt;&lt;&quot;Hello world&quot;&lt;&lt;endl;
  }
  int x=10;
}
using namespace abc;
int main()
{
  cout&lt;&lt;10;
  fun();
  return 0;
}

4 (10 Votes)
0
3.67
3
Egis 630 points 

                                    Namespace std::cout or cout &lt;&lt;

3.67 (3 Votes)
0
Are there any code examples left?
Find Add Code snippet
New code examples in category C++
SHOW MORE
Create a Free Account
Unlock the power of data and AI by diving into Python, ChatGPT, SQL, Power BI, and beyond.
Sign up
Develop soft skills on BrainApps
Complete the IQ Test
Relative searches
why should we use using namespace std in cpp c++ what is std namespace std using namespacce in cpp std in c++ meaning namespaces in c++ header namespace std cpp c++ namespace function definition c++ std metohd why to use namespace std in c++ simple example to create a namespace in c++ WHY WE USE using namespace std; how to use namespace std using standard namespace cpp c++ using namespaece std namespace std cplusplus why should we not use namespace std in c++ std function ++ c&acute;++ std what is the concept of namespace in c++ work of using namespace std in c++ do i need to use std namespace c++ namespace std in c++ meaning what does std do cpp c++ function inside namespace c++ what are namespaces namespace uses in c++ c++ using namespace std string c++ std c c++ namespaces and files should i use the std namespace c++ when should you use namespaces namespace meaning in cpp std= g++ what is namespace in cpp what is the std namespace in c++ std or namespace .std() cpp std() cpp using namespace cpp why using namespace std in cpp what is using namespace in cpp what is the function of namespace in c++ namespace std'' in c++ using namespace std syntax using namespace std what is it using namespaces c++ using namespace std example c++; waht is namespace std how use std using namespace std; in c++ syntax using namespace in cpp namespace in c++ class basic use of namespace in c++ how to use std inside namespaces c++ what is the meaning of using namespace std inn c++ string namespace c++ how to use c++ iwithout using namespace std namespace example in c++ stp std using namespace std definition what are the built in c++ namespaces what happens when we put using namespace std inside a function c++ why to use std :: in c++ what does using namespace std mean in c++ using and namespace in C++ using namepace std using namespace in c++ what are namespaces in cpp why use namespaces in c++ types of namespace in c++ example of namespace in c++ c++ should you use namespaces c ++ namespace std why we use namespace std in c++ sdcodr why do we use using namespace std what does namespace mean in c++ Why we shouldn't use using namespace std in c++ cpp using namespace std in another namespace -std g++ what are different namespaces in c++ c++ add namespace std namespace in c++ std in namespace cpp namespace with a char in c++ c using namespace std c++ using another namespace use std cpp std:: why use std in c++ call namespace function c++ c++ namespace function c++ using namespace from another header alternative to using namespace std in c++ utilit&eacute; namespace cpp c using namespace std c++ when to use std what are c++ namespaces what all using namespace std in c++ include what all using namespace std in c++ namespace in c++ with example program std using namespace what is namespace std namespace std reference c++ std reference c++ In C++ std is namespaces in cpp using namespace std and std:: should you use namespace std why do we declare namespace in c++ using std c+ what does namespace std look like c++ standard namespaces c++ namespace in header or cpp namespace class c++ significance of using namespace std in c++ using namespace std why we use what are namespaces c++ using namespace alglib; c++ c++ std stod how to use namespace of c++ in c where is std namespace defined c++ namespace inside struct cpp -std cpp using namespace using namespace std en c++ c++ namespaces meaning namespace keyword in c++ why to not use namespace std in c++ using std:: execl c++ namespace namespace c++ definition where is namespace std defined c++ include namespace std c++ use std using .* in namespace C++ how to include std cpp namespace in class c++ cpp firned namespace function c++ namespaces constructor using namespace std c++ definition c++ namespace example std meaning in c++ cpp std function how to import std in c++ how to include namespace std in c++ how to use std in c++ unnamed namespace using namespace system c++ namespace function c++ std namespace c++ should you use using namespace std what's using namespace std cpp string namespace is it good to use namespace in header file c++ should we use using namespace std in c++ std c++ g++ cpp use namespace std std stands for C++ why would you not use namespace std in c++ how to use using namespace std how to include std in cpp all std c++ how to use a namespace in cpp std c++ library is using namespace std good namespace in cpp c++ namespaces example who wrote C++ std why using namespace std; why is using namespace std c++ &quot;using&quot; in entire namespace graphspace namespace in cpp why we write using namespace std in c++ how to use a namespace you declare cpp import std c++ what does std in c++ mean namespace std en c++ c+++ using namespace std std:: cpp how to use std in c++ what is a namespace in cpp using namespace meaning in c++ what is the use of using namespace std; -std cpp using namespace std\ what is the use of using namespace std g++ -std= namespace variable c++ how to include std in c++ stdin using namespace c++ include after using namespace std purpose of using namespace std in c++ when to use std in c++ std:: in cpp need of using namespace std c++ using namespace std in header file C++ use namespace in a function what are namespaces used for in c++ is &quot;using namespace std&quot; good import namespace std c++ using namespace std::chrono; not using namespace std C++ namespace System std cpp meaning namespace cpp what are all the std namespaces in c++ c++ when to use namespaces use std cpp namespace c++ std namespaces explained in C++ why using namespace std in c++ whats std in c++ what is using namespace std; using namespace std when to use it why do you need to write using namespace std in c++ using namespace std means std namespace c++ library namespace base in c++ namespaces c++ why do we use std in c++ is it better to use std:: or using namespace std; what is std namespace in c++ cpp namespace std c++ std meaning std in c++ stands for what does std stand for c++ c++ namespace std documentation where do i use std:: why does C++ use std c++ string namespace namespace std no working c++ system namespace in c++ use of using namespace std in c++ what does std mean in c++ c++ std function std library in c++ why when i use string in c++ i need to write using namespace std ? c++ what is std define std in c++ call namespace c++ std c++ meaning using namespace std in c++ means what is std c++ what is std in cpp c++ std use namespace std c++ why does namespace need to be std in c++ what is the purpose of using namespace std in c++ using namespace std in c++ cosa significa what does using namespace std mean c++ what is namespaces what does using namespace do in c++ std meaning c++ namespace c++ header how to use a char in std namespace in C++ std library c++ using namespace c++ how to declare a namespace in header c++ namespace c++ example using standard namespace c++ c++ namespace in class using namespace cpp example using namepace std c++ is using a namespace std a header-name in c++ cpp why std should i uses using std c++ is namespace a keyword in c++ g++ std what does std stand for in c++ what are namespaces in c++ std cpp namespaces in c++ c++ using namespace use namespace in different c++ file using namspace std using name space std in c using namspace std; using namspage std why is std used in c++ why we use std in c++ why namespaces are required how to access a function within a namespace in c++ what is std in c++ c++ namespaces why do we need namespaces std c++ class in namespace c++ std function c++ using std::function in c++ using namespace std or using namespace::std cpp namespace types Why std is used after name cpp use namespace Function namespace c++ using std c++ stop typing std:: function definition in namespace c++ c++ use namespace std how to avoid using std:: should i use using namespace std how to use std function in namespace c++ using namespace stdf using namespaces and classes C++ using name space in c why to write using namespace std in c++ using namespade std What does a class do inside the namespace? keyword namespace in c++ using namespace std IN C name space feature where should using namespace std be different namespaces in c++ why using namespace std strcpy is in which namespace c++ c++ namespace std std otu in cpp namespaces in c namespace in c++ example cpp namespace string functions in c++ stl cpp std namespaces in programming language how do namespaces work namespaces n c++ simple cout command without usiing namespace std pros and cons of using namespace std c++ what does using namespace std do name space why do people us std:: instead of using namespace std how to store a namespace in c++ why use using namespace std in c++ namespaces in c+= #using namespace std why std is used in c++ why using namespace std is used in c++ naming my own types using using namespace c++ namespace std c++ name space c++ how to access functions of a namespace from a class in C++ c++ std:: using namespace std using namespace std c knowing about std namespace c++ use std instead of namespace using namespace in c++ class why do we use namespace std in c++ c++ name space Q8 : Why namespaces a are used? does c++ have cin and cout of different namespaces #define function c++ namespace include namespace std c++ what does using namespace mean in cpp? The scope of a namespace is what namespace in c++ refer to using std using std namespace using std namespace c++ c++ why use namespace std using namespace std ; cpp using namespace std c++ cusrom namespaces c++ variables inside namespace case for namspace c++ why namespace st what is using namespace in c++ proper use of using namespace std in c++ using name space name space in c++ c++ using name space can we use namespace in c www.what is the use of namespace in C # Why namespaces a are used? namespace scope in c++ cpp spacenmae using namespace definition of namespace in programming language what is namespace in c++ why do we have to use namespace std using name space std what is the emaning of using namespace std in c++ can I put using namespace std in a library c++ what does using namespace std; what is using namespace std what does using namespace std do in C++ cpp dont have to sat std namespace std code std namespace include namespace std use namespace std what does using namespace std do cpp using std using std::cout and using namespace std std in C++ What is std in C++? what do you have to put std before in c++ is namespace std a class including name space std c++ using namespace std meaning why namespace std is used in c++ c++ when do we use using namespace std; what is the use of using namespace std in c++ why we use using namespace std in c++ what are other standard namespaces in c++ C++ std namespace what use namespace in include function c++ program include namespace why we have to use using namespace std in c++ meaning of using namespace std in c++ what is the use of namespace std in c++ why is using namespace std used in c++ using std c++ why is namespace std used in c++ what data type is in namespace std c++ why do we use using namespace std in c++ using namespace std cpp why do we write using namespace std in c++ c++ using namespace std why std used in c++ why is std:: uesd in c++ namespace in a class c++ c++ ::namespace c++ :: namespace c++ using namespace std or not namespace std in c++ use of namespace std in c++ why do we use namespace std in cpp in namespace cpp as namespace cpp c++ using std namespace what is namespace std in c++ using namespace std in cpp namespace c++ in class why use namespace std in c++ what does namespace std mean in c++ using namespace std c++ meaning c++ define namespace does the std namespace contain the cout function *std in C++ using name std c++ name spaces in c++ use namespace c++ what is using namespace std in c++ using namespace std; c++ namespace namespace in c++ using namespace std meaning should i use using namepsace std namespace c++ using namespace std use std in c++ namespace std dont use standard namepsace C++ meaning of using namespace std c++ why using namespace std speeds the program using namespace std in c++ why is std:: used in c++ why we use std:: in c++ why we use namespace std in c++ using namespace std c++
Made with love
This website uses cookies to make IQCode work for you. By using this site, you agree to our cookie policy

Welcome Back!

Sign up to unlock all of IQCode features:
  • Test your skills and track progress
  • Engage in comprehensive interactive courses
  • Commit to daily skill-enhancing challenges
  • Solve practical, real-world issues
  • Share your insights and learnings
Create an account
Sign in
Recover lost password
Or log in with
Not registered?
Sign up takes less than a minute

Create a Free Account

Sign up to unlock all of IQCode features:
  • Test your skills and track progress
  • Engage in comprehensive interactive courses
  • Commit to daily skill-enhancing challenges
  • Solve practical, real-world issues
  • Share your insights and learnings
Create an account
Sign up
Or sign up with
By signing up, you agree to the Terms and Conditions and Privacy Policy. You also agree to receive product-related marketing emails from IQCode, which you can unsubscribe from at any time.
Creating a new code example
Code snippet title
Source