При вводе имени абонента или его номера выводить его фамилию, номер телефона и адрес.

#include <iostream>
#include <cstdio>
 
 
 
using namespace std;
 
int main()
{
    int numbers[10];
    char* surnames[10];
    char* adresses[10];
    char str;
    int a, t, n;
 
 
    numbers[0] = 958611362;
    numbers[1] = 509509882;
    numbers[2] = 669010500;
    numbers[3] = 502615062;
    numbers[4] = 951513451;
    numbers[5] = 505009237;
    numbers[6] = 956256107;
    numbers[7] = 314142212;
    numbers[8] = 314124968;
    numbers[9] = 314142380;
 
    surnames[0] = "Illya Sklyarov";
    surnames[1] = "Anatoliy Poloskov";
    surnames[2] = "Tolik Poloskov";
    surnames[3] = "Goarik Gabrelyan";
    surnames[4] = "Oksana Sklyarova";
    surnames[5] = "Igor Sklyarov";
    surnames[6] = "Zeykan Rostislav";
    surnames[7] = "My home";
    surnames[8] = "Grandmother";
    surnames[9] = "Poloskov Home";
 
    adresses[0] = "Vereshmarti street, 18";
    adresses[1] = "Tinodi street, 37";
    adresses[2] = "Tinodi street, 37";
    adresses[3] = "Velyka Bakta village, Parkova street, 15";
    adresses[4] = "Vereshmarti street, 18";
    adresses[5] = "Vereshmarti street, 18";
    adresses[6] = "Vereshmarti street, 25";
    adresses[7] = "Vereshmarti street, 18";
    adresses[8] = "Shevchenko street, 114/2";
    adresses[9] = "Tinodi street, 37";
 
 
    cout << "Enter number or press 0 if ypu want to find an abonent by name:" << endl;
    cin >> t;
    if (t == numbers[0])
    cout << surnames[0] << " \t" << adresses[0] <<" \t" << t << endl;
    else if (t == numbers[1])
    cout << surnames[1] << " \t" << adresses[1] <<" \t" << t << endl;
    else if (t == numbers[2])
    cout << surnames[2] << " \t" << adresses[2] <<" \t" << t << endl;
    else if (t == numbers[3])
    cout << surnames[3] << " \t" << adresses[3] <<" \t" << t << endl;
    else if (t == numbers[4])
    cout << surnames[4] << " \t" << adresses[4] <<" \t" << t << endl;
    else if (t == numbers[5])
    cout << surnames[5] << " \t" << adresses[5] <<" \t" << t << endl;
    else if (t == numbers[6])
    cout << surnames[6] << " \t" << adresses[6] <<" \t" << t << endl;
    else if (t == numbers[7])
    cout << surnames[7] << " \t" << adresses[7] <<" \t" << t << endl;
    else if (t == numbers[8])
    cout << surnames[8] << " \t" << adresses[8] <<" \t" << t << endl;
    else if (t == numbers[9])
    cout << surnames[9] << " \t" << adresses[9] <<" \t" << t << endl;
 
    if (t==0)
    cout << "Enter name and surname:" << endl;
    gets(str);
 
 
 
    if (str == surnames[0])
    cout << str << " \t" << adresses[0] <<" \t" << numbers[0] << endl;
 
    else
    cout << "Error! No abonent in database!" << endl;
 
 
  return 0;
}

strcmp(str, surnames[0]);

cin >> i
if (i<0) return 0;
if (i>10) return 0;
cout << surnames[i] << " \t" << adresses[i] <<" \t" << t << endl;