1 files changed, 7 insertions, 2 deletions
diff --git a/6p20.cpp b/6p20.cpp
index 58d5fbf..c2b0b0b 100644
--- a/6p20.cpp
+++ b/6p20.cpp
@@ -1,12 +1,17 @@
-#include <iostream>
 
 /*
  *
- * Description
+ * 6.20
  *
  *
  */
 
 int main () {
+
+	/*
+	  We should do it when we only need to read the data.
+	  There is no point accidentally writing to something we did not intend to write to.
+	  Because if we had used const we would not be allowed to.
+	 */
 	return 0;
 }