Matrice Fisa 4

#include <iostream>
#include <fstream>
using namespace std;

ifstream f("MATRICE.TXT");

void citire(int &n,int &m,int a[10][10])
{
    f>>n>>m;
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            f>>a[i][j];
}

void afisare(int n,int m,int a[10][10])
{
    cout<<"Afisare "<<endl;
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
            cout<<a[i][j]<<" ";
        cout<<endl;
    }
}
int nrCifre(long n)
{
    if(n==0)
        return 1;
    int k=0;
    while(n)
    {
        k++;
        n/=10;
    }
    return k;
}
void produs(int n,int m,int a[10][10])
{
    cout<<endl<<"Exercitiul 1 ";
    int k;
    cout<<"Pe randuri ";
    for(int i=1;i<=n;i++)
    {
        k=0;
        for(int j=1;j<=m;j++)
            k+=nrCifre(a[i][j]);
        cout<<k<<" ";
    }
    cout<<endl<<"Pe coloane ";
    for(int j=1;j<=m;j++)
    {
        k=0;
        for(int i=1;i<=n;i++)
            k+=nrCifre(a[i][j]);
        cout<<k<<" ";
    }

}
void margine(int n,int m,int a[10][10])
{
    cout<<endl<<"Exercitiul 2 ";
    int max=a[1][1],k=1;

    for(int j=1;j<=m;j++)
    {
         if(a[1][j]>max)
         {
             max=a[1][j];
             k=1;
         }else if(a[1][j]==max)
                    k++;
        if(a[n][j]>max)
        {
            max=a[n][j];
            k=1;
         }else if(a[n][j]==max)
                    k++;
    }
    for(int i=2;i<=n-1;i++)
    {
        if(a[i][1]>max)
         {
             max=a[i][1];
             k=1;
         }else if(a[i][1]==max)
                    k++;
        if(a[i][m]>max)
        {
            max=a[i][m];
            k=1;
         }else if(a[i][m]==max)
                    k++;
    }

}
void elemente(int n,int a[10][10])
{
    cout<<endl<<"Exercitiul 3: ";
    for(int j=1;j<=n;j++)
        cout<<a[1][j]<<" ";
    for(int j=2;j<=n;j++)
        cout<<a[j][n]<<" ";
    for(int j=n-1;j>=1;j--)
        cout<<a[n][j]<<" ";
    for(int i=n-1;i>=1;i--)
        cout<<a[i][1]<<" ";

}
int main()
{
    int m,n,a[10][10];
    citire(n,m,a);
    afisare(n,m,a);
    elemente(n,a);
    return 0;
}