/*
 * C++ Concatenare cand nu stim lungimea sirurilor
 */
 
#include <iostream>
#include <cstring>
using namespace std;
 
int main()
{
    char str1[100], str2[50];    
    cout << "Scrie primul sir : ";
    cin.getline(str1, sizeof(str1));
    cout << "Scrie al doilea sir: ";
    cin.getline(str2, sizeof(str2));
//Se afla cate caractere are fiecare sir
    int len1 = strlen(str1); 
//primul are len1 caractere
    int len2 = strlen(str2);
//al doilea are len2 caractere
 
/* Concatenare folosinf bucla FOR-se adauga cate un caracter la primul sir*/
    for (int i = 0; i < len2; i++)
    {
        str1[len1 + i] = str2[i];
    }
    str1[len1 + len2] = '\0';
    cout << "Sirul concatenat : " << str1;
    return 0;
}