instantiate a vector c++ code example

Example 1: c++ initialize a vector

#include <bits/stdc++.h> 
#include <vector> 
using namespace std; 
  
int main() 
{ 
// This vector initializes with the values: 10, 20, and 30
  vector<int> vect{ 10, 20, 30 }; 

    return 0; 
}

Example 2: initialize vector c++

// CPP program to create an empty vector
// and push values one by one.
#include <bits/stdc++.h>
using namespace std;

int main()
{
	int n = 3;

	// Create a vector of size n with
	// all values as 10.
	vector<int> vect(n, 10);

	for (int x : vect)
		cout << x << " ";

	return 0;
}