write the c++ code for defining a variable x=3.5 and incrementing it by 2. in matlab

#include <iostream>

int main() {
    double x = 3.5;
    x += 2;
    std::cout << "x = " << x << std::endl;
    return 0;
}
125 chars
9 lines

main.m
x = 3.5;
x = x + 2;
disp(['x = ' num2str(x)]);
47 chars
4 lines