expected semicolon where it already is [closed]

I am looking for help for my c++ project:

#include <iostream>
#include <cmath>
int main() {
    double x;
    double y;
    double z;
    std::string variant;
    std::cout << "Ievadi X vertibu!" << std::endl;
    if (std::cin >> x) {
        std::cout << "X - " << x;
        std::cout << "Ievadi Y vertibu!" << std::endl;
        if (std::cin >> y) {
            std::cout << "Y - " << y;
            if (x < -10 && y < -5) {
                z = (1 / x) + (1 / y);
                variant = "PIRMAIS";
            }
            else if ((-10 <= x && x < 0) && (-5 <= y && y < 0)) {
                z = (x - y) / (x + y);
                variant = "OTRAIS";
            }
            else if ((0 <= x && x < 2 * M_PI) && (y >= 0 && y < (M_PI / 2))) {
                z = std::sin(x) / std::cos(y);
                variant = "TRESHAIS";
            }
            else {
                z = log((pow(x, 2)) + pow(y, 2));
            }
        }
        else {
            std::cerr << "Y ievade bija nepareiza";
        }
    }
    std::cout << std::endl;
    std::cout << "result: " << z << std::endl;
    std::cout << variant;

    return 0;
}

The code is almost correct and working, but in the terminal it finds one problem:

expected ‘;’ before ‘if’

Where is my error? I still don’t get it, and I am confused. Can someone help me please? Explain to me where the issue is.