模板使用入门示例

#include <iostream>
using namespace std;

template <class Type>
Type max(Type arr[], int len)
{
if(len < 1)
return -99999;
Type ret = arr[0];
for(int i = 1; i < len; ++ i)
{
if(arr[i] > ret)
ret = arr[i];
}
return ret;
}

int main()
{
int n;
cin >> n;
double *arr = new double
;
for(int i = 0; i < n; ++ i)
cin >> *(arr+i);
cout << max(arr, n);
return 0;
}