How to create a Three Dimensional Array in C++

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How to create a Three Dimensional Array in C++ ?

Answer

To create a Three Dimensional Array in C++, you can use nested vectors or arrays.

✐ Examples

1 Creating a 3D Array with Nested Vectors

In this example,

We use vectors of vectors of vectors to create a 3D array.
The first dimension represents the outer vector, the second dimension represents the middle vector, and the third dimension represents the inner vector.

C++ Program

// Creating a 3D Array with Nested Vectors
#include <iostream>
#include <vector>

int main() {
    std::vector<std::vector<std::vector<int>>> threeDArray(3, std::vector<std::vector<int>>(2, std::vector<int>(4)));
    // Modify an element
    threeDArray[1][0][2] = 5;
    // Print the array
    for (auto& outer : threeDArray) {
        for (auto& middle : outer) {
            for (int value : middle) {
                std::cout << value << " ";
            }
            std::cout << std::endl;
        }
        std::cout << std::endl;
    }
    return 0;
}

Output

Summary

In this tutorial, we learned How to create a Three Dimensional Array in C++ language with well detailed examples.