hello world in c 2b 2b

1// Your First C++ Program
2
3#include <iostream>
4
5int main() {
6    std::cout << "Hello World!";
7    return 0;
8}

1#include <bits/stdc++.h>
2
3using namespace std;
4
5int main(){
6	cout << "hello world! \n"; 
7}                                                     //code by goukl aakash

1#include <iostream>
2using namespace std; 
3
4int main(){
5  cout << "Hello World" << endl;
6  return 0;
7}

1#include <iostream>
2using namespace std;
3int main(){
4  std:cout<< "hello world" << std:endl;

1#include <iostream>
2using namespace std;
3
4int main() {
5  cout << "Hello World!";
6  return 0;
7}
8

1#include <iostream>
2
3using namespace std;
4
5int main()
6{
7  	cout << "Hello World";
8  	return 0;
9}

1#include <iostream>
2
3int main() {
4  std::cout << "Hello World!";
5  
6  return 0;
7}

1#include <iostream>
2int main() {
3  std::cout << "Hello World!";
4  
5  return 0;
6}

1#include<iostream>
2using namespace std;
3int main(){
4  cout<<"hello World"<<endl;
5  return 0;
6}

1#include <iostream>
2int main(){
3  std::cout << "Hello World" << std::endl;
4  return 0;
5}