Graph/graph.hpp

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• Last update: 2020-11-05 12:15:41+09:00
• Include: #include "Graph/graph.hpp"

Required by

• Graph/bfs.hpp
• Graph/centroid_decomposition.hpp
• Graph/dijkstra.hpp
• Graph/heavy_light_decomposition.hpp
• Graph/level_ancestor.hpp
• Graph/lowlink.hpp
• Graph/strongly_connected_component.hpp
• Graph/topological_sort.hpp
• Graph/two_sat.hpp

Verified with

• Verify/articulation_points.test.cpp
• Verify/bridges.test.cpp
• Verify/centroid_decomposition_diameter.test.cpp
• Verify/dijkstra.test.cpp
• Verify/hld_lca.test.cpp
• Verify/hld_path.test.cpp
• Verify/hld_subtree.test.cpp
• Verify/level_ancestor.test.cpp
• Verify/strongly_connected_component.test.cpp
• Verify/topological_sort.test.cpp
• Verify/two_sat.test.cpp

Code

#pragma once

#include <vector>

template <class Cost = int>
struct Edge {
    int src, dst;
    Cost cost;

    Edge() = default;
    Edge(int src, int dst, Cost cost = 1)
        : src(src), dst(dst), cost(cost){};

    bool operator<(const Edge<Cost>& e) const { return cost < e.cost; }
    bool operator>(const Edge<Cost>& e) const { return cost > e.cost; }
};

template <class Cost = int>
struct Graph : public std::vector<std::vector<Edge<Cost>>> {
    using std::vector<std::vector<Edge<Cost>>>::vector;

    void span(bool direct, int src, int dst, Cost cost = 1) {
        (*this)[src].emplace_back(src, dst, cost);
        if (!direct) (*this)[dst].emplace_back(dst, src, cost);
    }
};

#line 2 "Graph/graph.hpp"

#include <vector>

template <class Cost = int>
struct Edge {
    int src, dst;
    Cost cost;

    Edge() = default;
    Edge(int src, int dst, Cost cost = 1)
        : src(src), dst(dst), cost(cost){};

    bool operator<(const Edge<Cost>& e) const { return cost < e.cost; }
    bool operator>(const Edge<Cost>& e) const { return cost > e.cost; }
};

template <class Cost = int>
struct Graph : public std::vector<std::vector<Edge<Cost>>> {
    using std::vector<std::vector<Edge<Cost>>>::vector;

    void span(bool direct, int src, int dst, Cost cost = 1) {
        (*this)[src].emplace_back(src, dst, cost);
        if (!direct) (*this)[dst].emplace_back(dst, src, cost);
    }
};

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