c++ pair

定义 typedef pair<int,string>p;

定义的p相当于struct

举个栗子:

#include<iostream>
#include<cstdio>
using namespace std;
typedef pair<int,string>p;
struct ac{
    int first;
    string second;
};
int main()
{
    p a;
    ac b;
    cin>>a.first>>a.second;
    cin>>b.first>>b.second;
    cout<<"a: "<<a.first<<" "<<a.second<<endl;
    cout<<"b: "<<b.first<<" "<<b.second<<endl;
    return 0;
}

输入:

1 a.first

2 b.first

输出:

a: 1 a.first
b: 2 b.first

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转载自blog.csdn.net/qq_41199327/article/details/79775976