diff --git a/python/0334-increasing-triplet-subsequence.py b/python/0334-increasing-triplet-subsequence.py
new file mode 100644
index 000000000..e193f0fd1
--- /dev/null
+++ b/python/0334-increasing-triplet-subsequence.py
@@ -0,0 +1,14 @@
+class Solution:
+ def increasingTriplet(self, nums: List[int]) -> bool:
+ first = float('inf') # Initialize first to positive infinity
+ second = float('inf') # Initialize second to positive infinity
+
+ for num in nums:
+ if num <= first:
+ first = num # Update first if num is smaller or equal
+ elif num <= second:
+ second = num # Update second if num is smaller or equal
+ else:
+ return True # We found a triplet: first < second < num
+
+ return False # No triplet exists
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