ABC text

#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
ifstream in ("date.in");
ofstream out ("date.out");
struct nod
{
    int frecv=1;
    char info[100];
    nod *st, *dr;
};
int maxf, minf=99;
void adauga(nod *&r, char cuv[100])
{
    if(!r)
    {
        r=new nod;
        strcpy(r->info, cuv);
        r->st=0;
        r->dr=0;
    }
    else if(strcmp(cuv,r->info)<0)  adauga(r->st,cuv);
    else if(strcmp(cuv,r->info)>0)  adauga(r->dr,cuv);
    else
    {
        r->frecv++;
        if(r->frecv>maxf) maxf=r->frecv;
        if(r->frecv<minf) minf=r->frecv;
    }
}

void SRD(nod *r)
{
    if(r->st)   SRD(r->st);
    if(r->frecv==maxf)
    cout<<r->info<<" ";
    if(r->dr)   SRD(r->dr);
}

void SRD2(nod *r)
{
    if(r->st)   SRD2(r->st);
    cout<<r->info<<" ";
    if(r->dr)   SRD2(r->dr);
}

int main()
{
    nod *r=NULL;
    char text[100];
    in.getline(text,99);
    char *aux=strtok(text," ,.-");
    while (aux != NULL)
    {
        adauga(r,aux);
        aux = strtok (NULL," ,.-");
    }
    cout<<"Frecventa max: ";
    SRD(r);
    cout<<endl<<"Frecventa min: ";
    if(minf==99) minf=1;
    maxf=minf;
    SRD(r);
    cout<<endl<<"Ordine crescatoare: ";
    SRD2(r);
}