Solution Class Reference

Public Member Functions
vector< int >	eventualSafeNodes (vector< vector< int > > &graph)

Private Member Functions
bool	dfs (int node, vector< vector< int > > &graph, vector< int > &color)

Detailed Description

Definition at line 5 of file main.cpp.

Member Function Documentation

dfs()

bool Solution::dfs ( int  node, vector< vector< int > > &  graph, vector< int > &  color  )

inlineprivate

Definition at line 8 of file main.cpp.

    {
        if (color[node] > 0)
            return color[node] == 2;
 
        color[node] = 1; // mark as visiting
        for (int neighbor : graph[node])
        {
            if (color[neighbor] == 2)
                continue;
            if (color[neighbor] == 1 || !dfs(neighbor, graph, color))
                return false;
        }
        color[node] = 2; // mark as safe
        return true;
    }

References dfs().

Referenced by dfs(), and eventualSafeNodes().

eventualSafeNodes()

vector< int > Solution::eventualSafeNodes ( vector< vector< int > > &  graph )

inline

Definition at line 26 of file main.cpp.

    {
        int n = (int)graph.size();
        vector<int> color(n, 0); // 0: unvisited, 1: visiting, 2: safe
 
        vector<int> result;
        for (int i = 0; i < n; ++i)
        {
            if (dfs(i, graph, color))
                result.push_back(i);
        }
        return result;
    }

References dfs().

Referenced by main().

---

The documentation for this class was generated from the following file:

• main.cpp