NameTempSpecial2, C++ (gcc)

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//g++  7.4.0
//NameTempSpecial2
//this code is created by Rezaul Hoque on May 15,2022;
//contact:jewelmrh@yahoo.com;Dhaka,Bangladesh;https://rezaulhoque.wordpress.com,https://hoquestake.blogspot.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;
#include <iostream>
#include <string>
enum Day {Sat,Sun,Mon,Tue,Wed,Thu,Fri};
namespace intro{
template<class X>
class Deco{
public:
template<class Y>
void f1(Y){std::cout<<"-------";}

void f2(){std::cout<<"This is a demo";}
};

template <>
class Deco<std::string>;//forward declare spec

}

template <>
class intro::Deco<std::string>{
public:
template<class Y>
void f1(Y n)
{
for(int m=0;m<n;m++){
std::cout<<"<";
}
std::cout<<"\n";

for(int m=0;m<n;m++){
std::cout<<">";}

std::cout<<"\n";
}
void f2(){std::cout<<"Namespace & Template Specialization Example \n";}
};

template<class X,class Y,class Z>
class DayTemp{
X w;
Y temp;
Z precip;
public:
DayTemp (){}
DayTemp(X a,Y c,Z e){ temp=c; w=a; precip=e;}

DayTemp(DayTemp& y){ temp=y.temp;w=y.w;precip=y.precip;}
~DayTemp (){}
Y getTemp(){ return temp;}
X getDay(){return w;}
Z getPreci(){return precip;}
};

int main()
{
const int sz=7;
intro::Deco<std::string> a;
a.f1(35);
a.f2();
a.f1(35);
DayTemp<Day,float,int> * p;
p=new DayTemp<Day,float,int>[sz];
p[0]={Thu,20.4,0};
p[1]={Wed,30,10};
p[2]={Mon,35,20};
p[3]={Tue,50,0};
p[4]={Sun,45,28};
p[5]={Sat,36,33};
p[6]={Fri,29,23};
std::cout<<" Day  Temp  Rain\n";
for(int r=0;r<sz;r++){
std::cout<<p[r].getDay()<<"\t";

std::cout<<p[r].getTemp()<<"\t";

std::cout<<p[r].getPreci()<<"\n";
}
delete [] p;
return 0;
}

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Compilation time: 0.42 sec, absolute running time: 0.15 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 0,74 sec