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c++ destructor graph

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B_Apdya Amrul Atqia answered on August 4, 2020 Popularity 4/10 Helpfulness 1/10

answer c++ destructor graph

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c++ destructor graph

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#include <bits/stdc++.h>
using namespace std;

//undirected graph
class graph
{
  vector<int>*adjacency_list; //array of vectors to store adjacency list
  int Vertices;
  public:
    //constructor
    graph(int n)
    {
      Vertices=n;
      adjacency_list = new vector<int>[Vertices]; //dynamic allocation
    }
    ~graph()
    {
        int i = 0;
        while (!adjacency_list[i].empty() && i < Vertices)
        {
            for (auto it = adjacency_list[i].begin(); it != adjacency_list[i].end(); ++it)
            {
                adjacency_list[i].erase(it);
                break;
            }
            i++;
        }
    }  
};

Graph destructor c++

Popularity 4/10 Helpfulness 1/10 Language cpp

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Tags: c++ destructor graph

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Contributed on Jan 31 2023

B_Apdya Amrul Atqia

0 Answers Avg Quality 2/10

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destructor in c++

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#include <iostream>
class Entity {
	
public:
	float x, y;
	Entity() {
		x = 0.0f;
		y = 0.0f;
      // the above is not a good practice ,instead you can use constructor member initializer list to initialize variables
		std::cout << "Created Entity" << std::endl;
		std::cout << "x " << x << " y " << y << std::endl;
		//This is a constructor and it gets called everytime we instantiate an object
		
	}
	~Entity() {
		//This is a destructor object it gets called every time object is destroyed or its scope ends
		//Note1:that this function can never return anything 
		//Note2:Followed by this ~ symbol the name of the function must be equal to class name
		std::cout << "[Destroyed Entity]" << std::endl;
	}
};

int main(){
	{
		Entity e1;
      //here constructor is called and output => Created Entity 
      //here constructor is called and output => 0,0
	}
  //here Destructor is called and output => Destroyed Entity
  // Destructor will get called here when compiler will get out of the end bracket and the lifetime of object ends
	 // have a graeater look in debug mode
	std::cin.get();
}

Popularity 10/10 Helpfulness 4/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Aug 04 2020

Alive Angelfish

0 Answers Avg Quality 2/10

c++ destructor

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class House {
private:
  std::string location;
  int rooms;
 
public:
  // Constructor with default parameters
  House(std::string loc = "New York", int num = 5) {
    location = loc;
    rooms = num;
  }
 
  void summary() {
    std::cout << location << " house with " << rooms << " rooms.\n";
  }
 
  // Destructor
  ~House() {
    std::cout << "Moved away from " << location;
  }
};

Popularity 9/10 Helpfulness 1/10 Language cpp

Source: www.codecademy.com

Tags: c++

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Contributed on Aug 13 2022

Successful Shrike

0 Answers Avg Quality 2/10

c++ destructor

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-2

Moved away from New York

Popularity 9/10 Helpfulness 1/10 Language cpp

Source: www.codecademy.com

Tags: c++

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Contributed on Aug 13 2022

Successful Shrike

0 Answers Avg Quality 2/10

c++ destructor graph

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