How to create a Two Dimensional List in C++ - Step by Step Examples

How to create a Two Dimensional List in C++ ?

Answer

To create a Two-Dimensional List in C++ using std::list, you can use nested lists or lists of lists to represent rows and columns.


✐ Examples

1 Create a 2D List of Integers

In this example,

  1. We include the necessary header files and define the main function.
  2. We declare a 2D list using std::list of std::list with integers as the data type.
  3. We initialize the elements of the 2D list with integer values.
  4. We print the 2D list to the console.

C++ Program

#include <iostream>
#include <list>

int main() {
    std::list<std::list<int>> matrix = {
        {1, 2, 3},
        {4, 5, 6},
        {7, 8, 9}
    };

    for (const auto& row : matrix) {
        for (const auto& element : row) {
            std::cout << element << ' ';
        }
        std::cout << '\n';
    }
    return 0;
}

Output

1 2 3 
4 5 6 
7 8 9

2 Create a 2D List of Strings

In this example,

  1. We include the necessary header files and define the main function.
  2. We declare a 2D list using std::list of std::list with strings as the data type.
  3. We initialize the elements of the 2D list with string values.
  4. We print the 2D list to the console.

C++ Program

#include <iostream>
#include <list>
#include <string>

int main() {
    std::list<std::list<std::string>> matrix = {
        {"apple", "banana", "cherry"},
        {"orange", "grape", "kiwi"}
    };

    for (const auto& row : matrix) {
        for (const auto& element : row) {
            std::cout << element << ' ';
        }
        std::cout << '\n';
    }
    return 0;
}

Output

apple banana cherry 
orange grape kiwi

Summary

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


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