diff --git a/cs677/hw7/src/floyd.cc b/cs677/hw7/src/floyd.cc
index 04dcde5..26d9920 100644
--- a/cs677/hw7/src/floyd.cc
+++ b/cs677/hw7/src/floyd.cc
@@ -63,7 +63,10 @@ int main(int argc, char * argv[])
     {
         for (int j = 0; j < num_verts; j++)
         {
-            printf("%2d ", D[num_verts & 1][i][j]);
+            if (D[num_verts & 1][i][j] == INT_MAX)
+                printf("-- ");
+            else
+                printf("%2d ", D[num_verts & 1][i][j]);
         }
         printf("\n");
     }