src/math/discrete/discrete.hpp

#ifndef __MATH_DISCRETE_HPP__
#define __MATH_DISCRETE_HPP__

#include <vector>
#include <memory>

namespace math {
        namespace discrete {
                int     factorial(int n);
                void    permutations(int** perm, int* trans, int i, int N);
                void    permutations(int**& perm, int*& trans, int N);
                
                int     p(int,int);
                int     c(int,int);
                
                namespace Graph {
                        class Node {
                        };
                        class Edge {
                                public:
                                        Node*   a_;
                                        Node*   b_;
                        };
                        class EdgeWeighted: public Edge {
                                public:
                                        double  w_;
                        };
                        class Graph {
                                public:
                                        std::vector<Node*>      nodes_;
                                        std::vector<Edge*>      edges_;
                        };
                }
        }
}

#endif

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