v2

#include <iostream>

#define ABS(x) ((x) < 0 ? -(x) : (x))
#define IN_SEGMENT(p, x1, x2) ((p)>=(x1) && (p)<=(x2))

int main() {
    double x, y;
    std::cout << "Input x,y: ";
    std::cin >> x >> y;

    if (x < 0 && y < 0) {
        x = ABS(x);
        y = ABS(y);
    } else if (x < 0 || y < 0) {
        x += 0.5;
        y += 0.5;
    } else if (x >= 0 && y >= 0 && !(IN_SEGMENT(x, .5, 2) || IN_SEGMENT(y, .5, 2))) {
        x /= 10;
        y /= 10;
    }
    std::cout << "x: " << x << std::endl;
    std::cout << "y: " << y << std::endl;
    return 0;
}