//me
typedef vector<int> vi;
vi a; a.push_back(10);	//init empty vector then fill
vi b(10,0);	//init vector with 10 0's
vi c {1,2,3};	//init vector like array
int l[] = {1,2,3}; vi d(l,l+ 3);	//init vector with array
vi d1{10,20,30}; vi d2(d1.begin(), d2.end());	//init vector with another
vi e(10); fill(e.begin(), e.end(), 0);	//init vector then fill with 0's

vector<int> a; // empty vector of ints
vector<int> b (5, 10); // five ints with value 10
vector<int> c (b.begin(),b.end()); // iterating through second
vector<int> d (c); // copy of c

#include <iostream>
#include <vector>
 
#define M 3
#define N 4
 
int main()
{ // specify default value to fill the vector elements int default_value = 1; // first initialize a vector of ints with given default value std::vector<int> v(N, default_value); // Use above vector to initialize the two-dimensional vector std::vector<std::vector<int>> matrix(M, v); return 0;
}

#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;
} 

#include
#include
using namespace std;
int main()
{
vector <int> v{1,2,3,4,5};
for(int value:v)
cout<<value<<" ";
return 0;
}

vector<int> vect{ 10, 20, 30 };

// Create an empty vector
vector<int> vect;
// Create a vector of size n with all values as 10.
vector<int> vect(n, 10);
//initilize with values
vector<int> vect{ 10, 20, 30 };
//initilize with old array
vector<int> vect(arr, arr + n);
//initilize with old vector
vector<int> vect2(vect1.begin(), vect1.end());

vector<int> vect;

#include <iostream>
#include <vector>
#define M 3
#define N 4
int main()
{ // specify default value to fill the vector elements int default_value = 1; // first initialize a vector of ints with given default value std::vector<int> v(N, default_value); // Use above vector to initialize the two-dimensional vector std::vector<std::vector<int>> matrix(M, v); // This vector initializes with the values: 10, 20, and 30 vector<int> vect{ 10, 20, 30 }; return 0;
}

std::vector<int> ints;
ints.push_back(10);
ints.push_back(20);
ints.push_back(30);