T4 2021 SII ex 3

#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    ifstream f("bac1.txt");
    ifstream g("bac2.txt");
    int n, m, a, b, i=1, j=1, k=0;
    f>>n>>a;
    g>>m>>b;
    while(i<=n && j<=m){
        ///cat timp putem compara un element din a cu unul din b
        ///cout<<a<<" "<<b<<endl;
        if(a<b){
            if(a%5==0){
                cout<<a<<" ";
            }
            i++;
            f>>a;
        }
        else if(b<a){
            if(b%5==0){
                cout<<b<<" ";
            }
            j++;
            g>>b;
        }
        else if(a==b){
            i++;
            j++;
            f>>a;
            g>>b;
        }
    }
    if(i<=n){
        for(k=i; k<=n; k++){
            if(a%5==0){
                cout<<a<<" ";
            }
            f>>a;
        }
    }
    else if(j<=m){
        for(k=j; k<=m; k++){
            if(b%5==0){
                cout<<b<<" ";
            }
            g>>b;
        }
    }
    return 0;
}