diff options
Diffstat (limited to 'graph/maxCarBiMatch.cpp')
| -rw-r--r-- | graph/maxCarBiMatch.cpp | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/graph/maxCarBiMatch.cpp b/graph/maxCarBiMatch.cpp deleted file mode 100644 index e928387..0000000 --- a/graph/maxCarBiMatch.cpp +++ /dev/null @@ -1,25 +0,0 @@ -vector<vector<int>> adj; -vector<int> pairs; // Der gematchte Knoten oder -1. -vector<bool> visited; - -bool dfs(int v) { - if (visited[v]) return false; - visited[v] = true; - for (int u : adj[v]) if (pairs[u] < 0 || dfs(pairs[u])) { - pairs[u] = v; pairs[v] = u; return true; - } - return false; -} - -int kuhn(int l) { // l = #Knoten links. - pairs.assign(sz(adj), -1); - int ans = 0; - // Greedy Matching. Optionale Beschleunigung. - for (int v = 0; v < l; v++) for (int u : adj[v]) - if (pairs[u] < 0) {pairs[u] = v; pairs[v] = u; ans++; break;} - for (int v = 0; v < l; v++) if (pairs[v] < 0) { - visited.assign(l, false); - ans += dfs(v); - } - return ans; // Größe des Matchings. -} |
