Помогите написать программу

 #include <cmath> 
#include <iostream>

using namespace std;

double y(const double a, const double x) { 
    static constexpr auto pi = 3.1415926535897932; 
    const auto px = pi * x; 
    const auto pxa = px + a; 
    const auto l = sqrt(fabs(tan(pxa))); 
    const auto m = log10(cos(pxa / 10.0)); 
    const auto r = pow(asin(px / 4.0), 2); 
    return l * m + r; 
}

double f(const double x, const double y, const double z) { 
    return max(max(x, y), z) + min(min(x / 2.0, y / 2.0), z / 2.0); 
}

double q(const double x) { 
    auto result = pow(cos(x), 2) + 1.0; 
    if (x < 0.0) result = tan(x) + 3.0; 
    else if (1.0 < x) result = sin(2 * x) + 5.0; 
    return result; 
}

bool contains(const double x, const double y) { 
    return y <= 0.0 && -1.0 <= y && fabs(x) <= 2.0; 
}

double parse_dauble(const char* prompt) { 
    cout << prompt; 
    double value; 
    cin >> value; 
    cin.ignore(0x1000, '\n'); 
    return value; 
}

int main() { 
    cout.setf(ios::fixed); 
    cout.precision(15); 
    { 
        puts("1 task"); 
        constexpr auto a = 2.3; 
        constexpr auto x = 0.7; 
        const auto result = y(a, x); 
        cout << "y(x,a) = " << result << '\n'; 
    } 
    cout.precision(3); 
    { 
        puts("2 task"); 
        const auto x = parse_dauble("x: "); 
        const auto y = parse_dauble("y: "); 
        const auto z = parse_dauble("z: "); 
        const auto result = f(x, y, z); 
        cout << "f(x,y,z) = " << result << '\n'; 
    } 
    cout.precision(15); 
    { 
        puts("3 task"); 
        const auto x = parse_dauble("x: "); 
        const auto result = q(x); 
        cout << "q(x) = " << result << '\n'; 
    } 
    { 
        puts("4 task"); 
        const auto x = parse_dauble("x: "); 
        const auto y = parse_dauble("y: "); 
        puts(contains(x, y) ? "Yes" : "No"); 
    }  
}