Зимовец - 2

#include <iostream>
#include <cmath>
using namespace std;

double Razv(double x){
    double z;
    if(x>=0.0 and x<=6.0){
        z=sin(x)*sin(x);
        double temp = tan(x);
        double temp1 = sqrt(x*x*x);
        if(temp<z) z = temp;
        if(temp1<z) z = temp1;
    }
    if(x>6.0){
        z=exp(-x);
        double temp = 2*sin(x);
        double temp1 = cos(x)*cos(x)*cos(x);
        double temp2 = log(x);
        if(temp>z) z = temp;
        if(temp1>z) z = temp1;
        if(temp2>z) z = temp2;
    }
    if(x<0.0) z = exp(-3*x);
    return z;
}
int main(){
    double x,z;
    cin >> x;
    z = Razv(x);
    cout << z;
}