What are some examples of greedy algorithms in C++?

Can you explain what greedy algorithms are?

Greedy algorithms are a type of algorithm that makes the locally optimal choice at each stage with the hope of finding a global optimum.

Can you give me some examples of greedy algorithms implemented in C++?

Sure! Examples include Kruskal's algorithm for minimum spanning trees and Dijkstra's algorithm for shortest paths.

How does Dijkstra's algorithm work?

Dijkstra's algorithm finds the shortest path from a source node to all other nodes in a graph by iteratively selecting the nearest unvisited node.

Can you show me a simple C++ code for Kruskal's algorithm?

Certainly! Here's a simple implementation of Kruskal's algorithm in C++:

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

struct Edge {
    int src, dest, weight;
};

bool compare(Edge a, Edge b) {
    return a.weight < b.weight;
}

void kruskal(vector<Edge> &edges, int V) {
    sort(edges.begin(), edges.end(), compare);
    // Further implementation goes here...
}

This is just the beginning; you would need to implement the union-find structure to complete it.