C++ 输入处理

#include 
#include 
#include 
using namespace std;

int main(){
    string a;
    getline(cin, a);
    cout << a << endl;
    string b;
    getline(cin, b);
    cout << b << endl;

    vector input;
    while(true){
        int tmp = 0;
        cin >> tmp;
        input.push_back(tmp);
        if(getchar() == '\n')
            break;
    }
    for(int i = 0; i < input.size(); ++i){
        cout << input[i] << endl;
    }

    string c;
    while(getline(cin, c)){
        cout << c << endl;
    }

    string d, e;
    cin >> d >> e;
    cout << d << endl;
    cout << e << endl;
}