调试地图插入? [英] Debugging map insertion?

问题描述

在将条目插入到地图时遇到问题.

I'm having an issue with inserting an entry into a Map.

#include <stdio.h>
#include <vector>
#include <stack>
#include <map>

using namespace std;

class Nodo
{
public:
    vector<Nodo> Relaciones;
    int Valor;
    bool Visitado;

    Nodo(int V)
    {
        Valor = V;
        Visitado = false;
    }
};

class Grafo
{
public:
    Nodo *Raiz;
    map<int, Nodo> Nodos;

    Grafo(int V)
    {
        Raiz = new Nodo(V);
        //Getting http://msdn.microsoft.com/en-us/library/s5b150wd(v=VS.100).aspx here
        Nodos.insert(pair<int, Nodo>(V, Raiz));
    }
};

推荐答案

您的类型不匹配.您正在将Nodo*传递给pair构造函数，而它需要一个Nodo对象.

You have a type mismatch. You're passing a Nodo* into the pair constructor while it expects a Nodo object.

您声明:

Nodo *Raiz;

，然后您尝试致电:

pair<int, Nodo>(V, Raiz)

，它需要一个int和一个Nodo.但是您通过了int和Nodo*.

which expects an int and a Nodo. But you passed it int and Nodo*.

您可能想要的是这样:

class Grafo
{
    public:
        Nodo *Raiz;
        map<int, Nodo*> Nodos;    //  change to pointer

        Grafo(int V)
        {
            Raiz = new Nodo(V);
            //Getting http://msdn.microsoft.com/en-us/library/s5b150wd(v=VS.100).aspx here
            Nodos.insert(pair<int, Nodo*>(V, Raiz));   // change to pointer
        }
};

这篇关于调试地图插入?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！