Create tuple-with-same-product.py

Author: kamyu104

Python/tuple-with-same-product.py

@@ -0,0 +1,19 @@
+# Time:  O(n^2)
+# Space: O(n^2)
+
+import collections
+
+
+class Solution(object):
+    def tupleSameProduct(self, nums):
+        """
+        :type nums: List[int]
+        :rtype: int
+        """
+        result = 0
+        count = collections.Counter()
+        for i in xrange(len(nums)):
+            for j in xrange(i+1, len(nums)): 
+                result += count[nums[i]*nums[j]]
+                count[nums[i]*nums[j]] += 1
+        return 8*result