#include <iostream>
#include <vector>
int main() {
int rows = 3; // Define the number of rows
int cols = 4; // Define the number of columns
std::vector<std::vector<bool>> matrix(rows, std::vector<bool>(cols, false)); // Declare a 2D boolean vector with initial values set to false
// Accessing and modifying elements in the boolean vector
matrix[0][1] = true; // Setting a specific element to true
// Printing the boolean vector
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < cols; ++j) {
std::cout << matrix[i][j] << " "; // Output the elements
}
std::cout << std::endl; // Move to the next row
}
return 0;
}