1 files changed, 19 insertions, 19 deletions

diff --git a/graph/scc.cpp b/graph/scc.cpp
index 9eb0881..b21d544 100644
--- a/graph/scc.cpp
+++ b/graph/scc.cpp
@@ -1,17 +1,17 @@
-// Laufzeit: O(|V|+|E|)
+vector<vector<int>> adjlist;
+
 int counter, sccCounter;
-vector<bool> visited, inStack;
-vector< vector<int> > adjlist;
-vector<int> d, low, sccs; // sccs enthält den Index der SCC pro Knoten.
-stack<int> s;
+vector<bool> inStack;
+vector<vector<int>> sccs;
+// idx enthält den Index der SCC pro Knoten.
+vector<int> d, low, idx, s;
 
 void visit(int v) {
-	visited[v] = true;
 	d[v] = low[v] = counter++;
-	s.push(v); inStack[v] = true;
+	s.push_back(v); inStack[v] = true;
 
 	for (auto u : adjlist[v]) {
-		if (!visited[u]) {
+		if (d[u] < 0) {
 			visit(u);
 			low[v] = min(low[v], low[u]);
 		} else if (inStack[u]) {
@@ -19,23 +19,23 @@ void visit(int v) {
 	}}
 
 	if (d[v] == low[v]) {
+		sccs.push_back({});
 		int u;
 		do {
-			u = s.top(); s.pop(); inStack[u] = false;
-			sccs[u] = sccCounter;
+			u = s.back(); s.pop_back(); inStack[u] = false;
+			idx[u] = sccCounter;
+			sccs[sccCounter].push_back(u);
 		} while (u != v);
 		sccCounter++;
 }}
 
 void scc() {
-	visited.assign(adjlist.size(), false);
-	d.assign(adjlist.size(), -1);
-	low.assign(adjlist.size(), -1);
-	inStack.assign(adjlist.size(), false);
-	sccs.resize(adjlist.size(), -1);
+	inStack.assign(sz(adjlist), false);
+	d.assign(sz(adjlist), -1);
+	low.assign(sz(adjlist), -1);
+	idx.assign(sz(adjlist), -1);
 
 	counter = sccCounter = 0;
-	for (int i = 0; i < (int)adjlist.size(); i++) {
-		if (!visited[i]) {
-			visit(i);
-}}}
+	for (int i = 0; i < sz(adjlist); i++) {
+		if (d[i] < 0) visit(i);
+}}