how to write hello world c++

#include <iostream>


int main(){
 std::cout <<"Hello World" << std::endl;
 return 0;
}

#include <iostream>

int main() {
    cout << "Hello World!";
    return 0;
}

import pandas as pd
row , coloumn = df.shape
year = [2012,2103,2014,2015]

for i in range(0,row) :
  if df.iloc[i]['Director'] == "Woody Allen" or df.iloc[i]['Director'] == "Steven Spielberg"  or df.iloc[i]['Director'] == "Seth MacFarlane" :
    if df.iloc[i]['Year'] in year and df.iloc[i]['Rating'] >= 7:
      print(df.iloc[i]['Title'])

#include <iostream>

int main()
{
  std::cout << "Hello, C++!" << std::endl;
  return 0;
}

#include <iostream> // Include standard library and namespace
using namespace std; // for c++

int main () // where program starts
{
	cout << "Hello World!\n"; // cout (part of std) prints message
  	return 0; // return int because main is of type int
}

#include <bits/stdc++.h>

using namespace std;

int main(){
	cout << "hello world! \n"; 
}                                                     //code by goukl aakash

#include <iostream>

int main() {
    std::cout << "Hello World!";
    return 0;
}

#include<iostream>
using namespace std;
int main(){
  cout<<"hello World"<<endl;
  return 0;
}

// Your First C++ Program

#include <iostream>

int main() {
    std::cout << "Hello World!";
    return 0;
}

// Your First C++ Program

#include <iostream>

int main() {
    std::cout << "Hello World!";
    return 0;
}