题解 | #牛牛的书#

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;

class Book{
    public:
    Book(string name,int price)
    {
        this->m_name=name;
        this->m_price=price;
    }
    void print()
    {
        cout<<m_name<<endl;
    }
    string m_name;
    int m_price;

};
bool Myconpare(Book &b1,Book &b2)
{
    return b1.m_price<b2.m_price;
}                                                                                                                                                                                                                         
int main() {
    vector<Book> v;
    int n;
    cin>>n;
    for(int i=0;i<n;i++)
    {
        string name;
        int price;
        cin>>name>>price;
        Book b(name,price);
        v.push_back(b);
    }
    sort(v.begin(),v.end(),Myconpare);
    for(vector<Book>::iterator it=v.begin();it!=v.end();it++)
    {
        (*it).print();
    }
    return 0;




}
// 64 位输出请用 printf("%lld")