#include <iostream>
#include <string>
#include <cmath>
using namespace std;
int main()
{
double x;
double a[3];
string namef[3]={"sin(x)","cos(x)","ln(x)"};
int ind[3]={0,1,2};
int n=3;
cout<<"Введите х ";
cin>>x;
if(x<=0)
{
cout<<"ln(x) не определен"<<endl;
if(sin(x)>cos(x))
cout<<"cos(x)="<<cos(x)<<"; sin(x)="<<sin(x)<<endl;
else
cout<<"sin(x)="<<sin(x)<<"; cos(x)="<<cos(x)<<endl;
}
else
{
a[0]=sin(x);
a[1]=cos(x);
a[2]=log(x);
double dtmp;
int tmp;
for(int i=0;i<n-1;++i)
for(int j=0;j<n-1;++j)
if (a[j+1]<a[j])
{
dtmp=a[j+1];
a[j+1]=a[j];
a[j]=dtmp;
tmp=ind[j+1];
ind[j+1]=ind[j];
ind[j]=tmp;
}
cout<<namef[ind[0]]<<"="<<a[0]<<"; "<<namef[ind[1]]<<"="<<a[1]<<"; "<<namef[ind[2]]<<"="<<a[2]<<"; "<<endl;
}
return 0;
}
