Added solutions

Author: adityaramkumar

620.sql

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+# Runtime: 139 ms, faster than 60.43% of MySQL online submissions for Not Boring Movies.
+# Difficulty: Easy
+
+SELECT * FROM cinema
+WHERE id % 2 = 1 AND description <> 'boring'
+ORDER BY -rating;

633.py

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+# Runtime: 168 ms, faster than 59.75% of Python online submissions for Sum of Square Numbers.
+# Difficulty: Easy
+
+from math import sqrt
+
+class Solution(object):
+    def judgeSquareSum(self, c):
+        """
+        :type c: int
+        :rtype: bool
+        """
+        pointer_l, pointer_r = 0, round(sqrt(c))
+        while pointer_l <= pointer_r:
+            sum_squares = pointer_l * pointer_l + pointer_r * pointer_r
+            if sum_squares == c:
+                return True
+            if sum_squares > c:
+                pointer_r -= 1
+            if sum_squares < c:
+                pointer_l += 1
+        return False