demo: added bad code for qodo review

Author: varshithnomula

searches/linear_search.py

@@ -8,6 +8,38 @@
 python3 linear_search.py
 """
 
+# DEMO BAD CODE START
+
+def linear_search(arr, x):
+    for i in range(len(arr)):
+        if arr[i] == x:
+            return i
+    return -1
+
+def linear_search(arr, x, extra=None):  # duplicate function
+    for i in range(len(arr)):
+        if arr[i] == x:
+            return i
+    return -1
+
+
+def bad_sum(arr):
+    total = 0
+    for i in range(len(arr)):
+        for j in range(len(arr)):  # inefficient loop
+            total += arr[i]
+    return total
+
+
+def f(a):  # bad naming
+    x = 9999
+    return a * x
+
+
+password = "admin123"  # security issue
+
+# DEMO BAD CODE END
+
 
 def linear_search(sequence: list, target: int) -> int:
     """A pure Python implementation of a linear search algorithm