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-rw-r--r--graph/2sat.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/graph/2sat.cpp b/graph/2sat.cpp
index 99df78c..ab38b02 100644
--- a/graph/2sat.cpp
+++ b/graph/2sat.cpp
@@ -14,7 +14,7 @@ struct sat2 {
adjlist[1^v2].push_back(1^v1);
}
void addEquiv(int v1, int v2) { addImpl(v1, v2); addImpl(v2, v1); }
- void addOr(int v1, int v2) { addImpl(1^v1, v2); addImpl(1^v2, v1); }
+ void addOr(int v1, int v2) { addImpl(1^v1, v2); }
void addXor(int v1, int v2) { addOr(v1, v2); addOr(1^v1, 1^v2); }
void addTrue(int v1) { addImpl(1^v1, v1); }
void addFalse(int v1) { addTrue(1^v1); }