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authorjack <[email protected]>2024-06-14 13:13:15 -0600
committerjack <[email protected]>2024-06-14 13:13:15 -0600
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tree96df922dae2a5073d9a50ea70c7aae6aa37e3ebe /pascals_triangle2.py
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+# 119. Pascal's Triangle II
+
+"""
+given an integer 'row_index', return the 'row_index'th row of the pascals
+triangle. in pascals triangle, each number is the sum of the two numbers
+directly above it as shown.
+"""
+
+
+class Solution(object):
+ def getRow(self, row_index):
+ row = [1]
+ for _ in range(row_index):
+ row = [x + y for x, y in zip([0] + row, row + [0])]
+ return row
+
+
+if __name__ == "__main__":
+ obj = Solution()
+ print(obj.getRow(3))
+ print(obj.getRow(0))
+ print(obj.getRow(1))