Update app.py

app.py

@@ -18,6 +18,24 @@ CODE_SNIPPETS = [
     return sum(1 for e in elements if e > threshold)""",
     """def find_min_max(elements):
     return min(elements), max(elements)"""
+    """def count_evens(nums):
+    return len([n for n in nums if n % 2 == 0])""",
+     """def reverse_string(s):
+    return s[::-1]""",
+    """def is_prime(n):
+    if n < 2:
+        return False
+    for i in range(2, int(n**0.5)+1):
+        if n % i == 0:
+            return False
+    return True""",
+    """def factorial(n):
+    result = 1
+    for i in range(1, n+1):
+        result *= i
+    return result""",
+    """def sum_of_squares(nums):
+    return sum(map(lambda x: x**2, nums))"""
 ]
 
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