initialize vector with size and value c++ code example

Example 1: how to create a vector in c++

// CPP program to create an empty vector 
// and push values one by one. 
#include <vector>

using namespace std;
int main() 
{ 
    // Create an empty vector 
    vector<int> vect;  
    //add/push an integer to the end of the vector
    vect.push_back(10); 
	//to traverse and print the vector from start to finish
    for (int x : vect) 
        cout << x << " ";

    return 0; 
}

Example 2: c++ initialize vector of vector with size

vector<vector<int>> v(10, vector<int>(10));

Example 3: how to initialize a vector in c++

std::vector<type> name;

Example 4: c++ vector initialize size

vector<Entry> array(1000);//size of 1000