利用c++中的sarrus规则计算矩阵

#include <iostream>
using namespace std;

int calculateDeterminant(int matrix[3][3]) {
    int result = 0;
    result += matrix[0][0] * matrix[1][1] * matrix[2][2];
    result += matrix[0][1] * matrix[1][2] * matrix[2][0];
    result += matrix[0][2] * matrix[1][0] * matrix[2][1];
    result -= matrix[0][2] * matrix[1][1] * matrix[2][0];
    result -= matrix[0][0] * matrix[1][2] * matrix[2][1];
    result -= matrix[0][1] * matrix[1][0] * matrix[2][2];
    return result;
}

int main() {
    int matrix[3][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
    int determinant = calculateDeterminant(matrix);
    cout << "The determinant of the matrix is: " << determinant << endl;
    return 0;
}