шаблон

#include <iostream>
#include<string>
using namespace std;
template<typename T>
void input(T*a, int n, int m)
{
for (int i = 0; i < n; ++i)
    for(int j=0; j<m; ++j)
            {
                cout<<"a["<<i<<"]"<<"["<<j<<"]"<<" = ";
                cin>>a[i][j];
            }
}
template<typename T>
void output(T*a, int n, int m)
{
for (int i = 0; i < n; ++i)
    for(int j=0; j<m;++j)
                    cout<<'\n'<<"a["<<i<<"]"<<"["<<j<<"]"<<" = "<<a[i][j]<<'\n';
}
template<typename T>
void mass()
    {}
int main()
{
    int n, m, k;
    cout<<"Vvedite razmernost: ";
    cin>>n>>m;
    int **a=new int*[n];
    for(int i=0; i<n; ++i)
        a[i]=new int [m];
    int *b=new int [m];
    input(a,n,m);
    if (n % 2==0)
        output(a,n,m);
    else
        for(int i=0; i<n; ++i)
        {
            for(int j=0; j<m; ++j)
            {
                b[i]=a[i+1][j];
                a[i][j]=b[i];
                cout<<'\n'<<"a["<<i<<"]"<<"["<<j<<"]"<<" = "<<a[i][j]<<'\n';
            }
            ++i;
        }


system("pause");
return 0;
}