diff --git a/Shreshth_Srivastava/Submission/Q1_valid_palidrome/Screenshot 2025-07-06 204008.png b/Shreshth_Srivastava/Submission/Q1_valid_palidrome/Screenshot 2025-07-06 204008.png
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diff --git a/Shreshth_Srivastava/Submission/Q1_valid_palidrome/solution.py b/Shreshth_Srivastava/Submission/Q1_valid_palidrome/solution.py
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+++ b/Shreshth_Srivastava/Submission/Q1_valid_palidrome/solution.py
@@ -0,0 +1,9 @@
+def is_palindrome(s):
+   
+    cleaned = ''.join(char.lower() for char in s if char.isalnum())
+    return cleaned == cleaned[::-1]
+
+if __name__ == "__main__":
+    s = input("Enter a string: ")
+    result = is_palindrome(s)
+    print("Output:", result)
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diff --git a/Shreshth_Srivastava/Submission/Q2_Subset/Screenshot 2025-07-06 204131.png b/Shreshth_Srivastava/Submission/Q2_Subset/Screenshot 2025-07-06 204131.png
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diff --git a/Shreshth_Srivastava/Submission/Q2_Subset/solution.py b/Shreshth_Srivastava/Submission/Q2_Subset/solution.py
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+++ b/Shreshth_Srivastava/Submission/Q2_Subset/solution.py
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+def subsets(nums):
+    result = []
+
+    def backtrack(start, path):
+        result.append(path[:])  
+        for i in range(start, len(nums)):
+            path.append(nums[i])        
+            backtrack(i + 1, path)      
+            path.pop()                  
+    backtrack(0, [])
+    return result
+
+
+if __name__ == "__main__":
+    nums = list(map(int, input("Enter numbers separated by space: ").split()))
+    output = subsets(nums)
+    print("Output:")
+    print(output)