Tweaked constraints section discussion.

arrays_strings/compress/compress_challenge.ipynb

@@ -34,8 +34,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can we assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",

arrays_strings/compress/compress_solution.ipynb

@@ -35,8 +35,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can we assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",

arrays_strings/hash_map/hash_map_challenge.ipynb

@@ -34,8 +34,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* For simplicity, are the keys integers only?\n",
     "    * Yes\n",
     "* For collision resolution, can we use linked lists?\n",

arrays_strings/hash_map/hash_map_solution.ipynb

@@ -33,8 +33,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* For simplicity, are the keys integers only?\n",
     "    * Yes\n",
     "* For collision resolution, can we use linked lists?\n",

arrays_strings/permutation/permutation_challenge.ipynb

@@ -34,8 +34,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can we assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",

arrays_strings/permutation/permutation_solution.ipynb

@@ -35,8 +35,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can we assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",

arrays_strings/reverse_string/reverse_string_challenge.ipynb

@@ -34,8 +34,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can I assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",

arrays_strings/reverse_string/reverse_string_solution.ipynb

@@ -36,8 +36,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can I assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",

arrays_strings/rotation/rotation_challenge.ipynb

@@ -34,8 +34,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can you assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",

arrays_strings/rotation/rotation_solution.ipynb

@@ -34,8 +34,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can you assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",

arrays_strings/unique_chars/unique_chars_challenge.ipynb

@@ -34,8 +34,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can you assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",

arrays_strings/unique_chars/unique_chars_solution.ipynb

@@ -37,8 +37,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
-    "\n",
+
     "* Can you assume the string is ASCII?\n",
     "    * Yes\n",
     "    * Note: Unicode strings could require special handling depending on your language\n",