Probleme cu siruri

// contine majusculele din cel initial. Sirul care contine n caractere incepand de la pozitia p din
// sirul initial, n si p se citesc si sirul care contine caracterele celui initial cu exceptia celor n
// incepand de la pozitia p.

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

void p1(char s[])
{
    int ok = 0;
    for(int i = 0; i < strlen(s); i++)
        if(s[i] >= '0' && s[i] <= '9') {
            cout << s[i]; ok = 1;
        }
        cout << endl;
    if(!ok)
        cout << "N-avem cifre ba, iesi acasa.";
}

void p2(char s[])
{
    int contor = 0;
    char voc[] = "aeiouAEIOU";
    cout << endl;
    for(int i = 0; i < strlen(s); i++)
    if(strchr(voc, s[i])) {
        cout << s[i];
        contor = 1;
    }
    if(!contor)
        cout << "N-avem vocale, pleaca acasa.";
}

void p3(char s[])
{
    char aux[101];
    strcpy(aux, s);
    strrev(aux);
    cout << endl;
    if(strcmp(aux, s) == 0)
        cout << "Este palindrom" << endl;
    else cout << "Nu este palindrom" << endl;
}

void p4(char s[])
{
    int ok = 0;
    for(int i = 0; i < strlen(s); i++)
        if(s[i] >= 'A' && s[i] <= 'Z') {
            cout << s[i]; ok = 1;
        }
        cout << endl;
    if(!ok)
        cout << "N-avem majuscule ba, iesi acasa.";
}

void p5(char s[])
{
    int p, n, i; cout << endl;
    cin >> p >> n; cout << endl;
    for(i = p; i < p + n; i++)
        cout << s[i];
}


int main()
{
    char s[101];
    cin.getline(s, 101);
    p1(s);
    p2(s);
    p3(s);
    p4(s);
    p5(s);
    return 0;
}