Шаблоны функции

#include <iostream>
#include <cstring>
 
using namespace std;
 
template <class T>
T maxn(T arr[],int n);
 
template <> char * maxn<char*>(char* arr[], int n);
 
int main()
{
    int numbers_i[6] = {4,3,5,6,1,8};
    double numbers_d[4] = {24.42,13.4,0,-64.6542};
    const char* numbers_pc[5] = {"goga chmo_))", "Vano orex", "Dillo deeepth", "1234567890", "Ia baklagan!" };
    cout << "Max int: " << maxn(numbers_i, 6) << endl;
    cout << "Max double: " << maxn(numbers_d, 4) << endl;
    cout << "Max length string: " << maxn(numbers_pc, 5) << endl;
 
 
 
    return 0;
}
 
template <class T>
T max5(T arr[], int n)
{
    T max_dig = arr[0];
    for (int i = 1; i < n; i++)
    {
        max_dig = max_dig > arr[i] ? max_dig : arr[i];
    }
    return max_dig;
}
 
 
template <> char * maxn<char*>(char* arr[], int n)
{
    char * pc = arr[0];
    for (int i = 1; i < n; i++)
    {
        pc = strlen(pc) > strlen(arr[i]) ? pc : arr[i];
 
    }
    return pc;
}

#include <iostream>
#include <cstring>
 
using namespace std;
 
template <class T>
T* maxn(T *arr,int n);
 
template <>
char** maxn<char*>(char **arr, int n);
 
int main()
{
    int numbers_i[6] = {4,3,5,6,1,8};
    double numbers_d[4] = {24.42,13.4,0,-64.6542};
    char* numbers_pc[] = {"goga chmo_))", "Vano orex", "Dillo deeepth", "1234567890", "Ia baklagan!" };
    cout << "Max int: " << *maxn(numbers_i, 6) << endl;
    cout << "Max double: " << *maxn(numbers_d, 4) << endl;
    cout << "Max length string: " << *maxn(numbers_pc, 5) << endl;
 
    return 0;
}
 
template <class T>
T* maxn(T *arr, int n)
{
    T *max_dig = arr;
    for (int i = 1; i < n; i++)
    {
        max_dig[i] = max_dig[i] > arr[i] ? max_dig[i] : arr[i];
    }
    return max_dig;
}
 
 
template <> 
char ** maxn<char*>(char** arr, int n)
{
    char ** pc = arr;
    for (int i = 1; i < n; i++)
    {
        pc[i] = pc[i] > arr[i] ? pc[i] : arr[i];
 
    }
   return static_cast<char **>(pc);
}