Create a TAD to represent a data

Question

I have the following task:

Create a TAD (struct) to represent a Circumference and then check which of the read circumferences intersect between them.

I need to store four basic data, id, x, y and ray. I think about using std::<vector> to store read data (indefinite amount).

I’m having difficulty in creating the TAD and how I will read the main

//                      lib.hpp
#include <vector.h>
typedef struct{
    double id, x, y, raio;
} Circunferencia;

//  TAD
struct circVector{
    Circunferencia *circ;
    // como seria a passagem por parametro aqui?
    int calcularIntersecao(vector<Circunferencia> circ);
};

----------------

//                    main.cpp
#include<iostream>
#include<vector>
#include "lib.hpp"
int main(){
    int n;
    // cria um "vetor de structs"
    vector<Circunferencia> c;
    // auxilia a leitura antes de guardar na TAD
    Circunferencia aux;
    while(cin >> n){
        cin >> aux._id;
        cin >> aux._x;
        cin >> aux._y;
        cin >> aux._raio;
        // adiciona a struct q foi lida para o vector de structs
        c.push_back(aux);
    }
}