Snippet

Grid Storage with Nested Arrays

Multidimensional arrays in C++ are stored in row-major order. This means all elements of a row are contiguous in memory. Nested loops are the standard way to traverse these structures using row and column indices.

snippet.cpp

cpp

#include <iostream>
 
void renderGrid() {
    // A 2x3 matrix of integers
    int grid[2][3] = {
        {1, 2, 3},
        {4, 5, 6}
    };
 
    for (int r = 0; r < 2; r++) {
        for (int c = 0; c < 3; c++) {
            std::cout << grid[r][c] << " ";
        }
        std::cout << std::endl;
    }
}

Breakdown

int grid[2][3]

Declares an array of 2 arrays, each containing 3 integers.

grid[r][c]

Uses two indices to access a specific element in the 2D memory layout.

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Grid Storage with Nested Arrays

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