Question

How to print vector using for loop in C++

Answer 1

#include <iostream>  
#include <vector> 

using std::vector;
using std::cout;
using std::endl;

int main()
{
	vector<int> v{ 0, 1, 2, 3, 4 };

	for (int i = 0; i < v.size(); i++)
		cout << v[i] << endl;

	return 0;
}

/*
run:

0
1
2
3
4

*/

 

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Answer 2

#include <iostream>  
#include <vector> 

using std::vector;
using std::cout;
using std::endl;

int main()
{
	vector<int> v{ 0, 1, 2, 3, 4 };

	for (int n : v)
		cout << n << endl;

	return 0;
}

/*
run:

0
1
2
3
4

*/

 

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