Standard Initialization of a 3D vector

2. Initialization of a 3D vector with given dimensions

Standard initialization of a 3D vector is a method where we initialize by declaring and then inserting elements using the push_back( ) function.

Syntax:

vector<vector<vector<data_type>>> vector_name;

Example:

C++

// C++ program to initialise
// 3D vector using Standard
// initialization of a 3D vector
#include <iostream>
#include <vector>
 
using namespace std;
 
int main()
{
    // Initialising an empty 3D vector
    vector<vector<vector<int> > > v;
 
    // Adding values to the vector
    v.push_back({ { 1, 2, 3 }, { 3, 2, 1 } });
    v.push_back({ { 4, 5, 6 }, { 6, 5, 4 } });
 
    // Printing the 3d vector
    for (int i = 0; i < v.size(); i++) {
        for (int j = 0; j < v[i].size(); j++) {
            for (int k = 0; k < v[i][j].size(); k++) {
                cout << v[i][j][k] << " ";
            }
            cout << endl;
        }
    }
 
    return 0;
}

Output

How to Initialize 3D Vector in C++ STL?

Prerequisite: Vector in C++

Vectors in C++ are the same as arrays with dynamic sizes having the ability to resize themselves, we can insert and remove elements from the end.

Tags:

#cpp-vector #STL #Technical Scripter 2022 #C++ #Technical Scripter #CPP #STL

3-D Vector

2. Initialization of a 3D vector with given dimensions

Standard Initialization of a 3D vector

C++

How to Initialize 3D Vector in C++ STL?

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