page_74_default_queue

/*4. Ñîçäàòü  ñïèñîê  èç  ñëîâ.  Ïîäñ÷èòàòü,  ñêîëüêî  ñëîâ  íà÷èíàåòñÿ
íà  äàííóþ  áóêâó.
Ñîçäàòü èç íèõ íîâûé ñïèñîê, óäàëèâ èõ èç èñõîäíîãî ñïèñêà.*/

#include <fstream>
#include <string>
#include <queue>
using namespace std;
int main(){
    queue<string> q1;
    queue<string> q2;
    string str, a;
    int cnt = 0;
    ifstream in ("input.txt");
    ofstream out ("output.txt");
    in >> a;
    while (in >> str){
        q1.push(str);
        if (str.find_first_of(a) < string::npos) cnt++;  }
    in.close();
    while (!q1.empty()){
        string q = q1.front();
        if (q.find_first_of(a) != string::npos){ q1.pop(); continue;} else q2.push(q);
        q1.pop();
    }
    while (!q2.empty()){
        out << q2.front() << ' ';
        q2.pop();}
    out << '\n' << "Count = " << cnt << endl;
    out.close();
    return 0;
}