tema 18.9 prima cifra in loc de max

#include <iostream>
#include <fstream>

using namespace std;

ifstream f("date.in");
ofstream g("date.out");

int main()
{
    int a[100][100],i,j,m,n,pc,ogl,cop,con,nr,q;
    f>>m>>n;//m-linii,n-coloane
    for (i=1;i<=n;i++)
    for (j=1;j<=m;j++)
    {
        f>>a[i][j];
        if (j%2==1)
        {
            cop=a[i][j];
            con=0;
            ogl=0;
            while (cop)
            {
                ogl=ogl*10+cop%10;
                cop=cop/10;
                con++;
            }
        pc=ogl%10;
        nr=0;
        for (q=1;q<=con;q++)
        nr=nr*10+pc;
        a[i][j]=nr;
        }
    }
    for (i=1;i<=n;i++)
    {
        for (j=1;j<=m;j++)
        g<<a[i][j]<<" ";
        g<<'\n';
    }
    return 0;
}