1 files changed, 0 insertions, 31 deletions
diff --git a/graph/2sat.cpp b/graph/2sat.cpp
deleted file mode 100644
index 75e54e6..0000000
--- a/graph/2sat.cpp
+++ /dev/null
@@ -1,31 +0,0 @@
-struct sat2 {
-	int n; // + scc variablen
-	vector<int> sol;
-
-	sat2(int vars) : n(vars*2), adj(n) {}
-
-	static int var(int i) {return i << 1;} // use this!
-
-	void addImpl(int a, int b) {
-		adj[a].push_back(b);
-		adj[1^b].push_back(1^a);
-	}
-	void addEquiv(int a, int b) {addImpl(a, b); addImpl(b, a);}
-	void addOr(int a, int b) {addImpl(1^a, b);}
-	void addXor(int a, int b) {addOr(a, b); addOr(1^a, 1^b);}
-	void addTrue(int a) {addImpl(1^a, a);}
-	void addFalse(int a) {addTrue(1^a);}
-	void addAnd(int a, int b) {addTrue(a); addTrue(b);}
-	void addNand(int a, int b) {addOr(1^a, 1^b);}
-
-	bool solve() {
-		scc(); //scc code von oben
-		sol.assign(n, -1);
-		for (int i = 0; i < n; i += 2) {
-			if (idx[i] == idx[i + 1]) return false;
-			sol[i] = idx[i] < idx[i + 1];
-			sol[i + 1] = !sol[i];
-		}
-		return true;
-	}
-};