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-rw-r--r--world.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/world.cpp b/world.cpp
index e99ce97..40c49ea 100644
--- a/world.cpp
+++ b/world.cpp
@@ -1,5 +1,6 @@
#include <cstdlib>
#include <cassert>
+#include <cstring>
#include "world.h"
using namespace std;