add hw6 solution

.vscode/launch.json

@@ -88,6 +88,22 @@
             "MIMode": "gdb",
             "miDebuggerPath": "/usr/bin/gdb",
             "preLaunchTask": "C/C++: g++ build active file"
+        },
+        {
+            "name": "inverse_word_search",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${fileDirname}/${fileBasenameNoExtension}",
+            "args": [
+                "puzzle3.txt",
+                "output.txt",
+                "all_solutions"
+            ],
+            "cwd": "${fileDirname}",
+            "environment": [],
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/gdb",
+            "preLaunchTask": "C/C++: g++ build active file"
         }
     ]
 }

.vscode/settings.json

@@ -71,6 +71,8 @@
         "__hash_table": "cpp",
         "__string": "cpp",
         "queue": "cpp",
-        "stack": "cpp"
+        "stack": "cpp",
+        "set": "cpp",
+        "climits": "cpp"
     }
 }