A good meal is a meal that contains exactly two different food items with a sum of deliciousness equal to a power of two.
\n\nYou can pick any two different foods to make a good meal.
\n\nGiven an array of integers deliciousness where deliciousness[i] is the deliciousness of the ith item of food, return the number of different good meals you can make from this list modulo 109 + 7.
Note that items with different indices are considered different even if they have the same deliciousness value.
\n\n\n
Example 1:
\n\n\nInput: deliciousness = [1,3,5,7,9]\nOutput: 4\nExplanation: The good meals are (1,3), (1,7), (3,5) and, (7,9).\nTheir respective sums are 4, 8, 8, and 16, all of which are powers of 2.\n\n\n
Example 2:
\n\n\nInput: deliciousness = [1,1,1,3,3,3,7]\nOutput: 15\nExplanation: The good meals are (1,1) with 3 ways, (1,3) with 9 ways, and (1,7) with 3 ways.\n\n
\n
Constraints:
\n\n1 <= deliciousness.length <= 1050 <= deliciousness[i] <= 220大餐 是指 恰好包含两道不同餐品 的一餐，其美味程度之和等于 2 的幂。
\n\n你可以搭配 任意 两道餐品做一顿大餐。
\n\n给你一个整数数组 deliciousness ，其中 deliciousness[i] 是第 i 道餐品的美味程度，返回你可以用数组中的餐品做出的不同 大餐 的数量。结果需要对 109 + 7 取余。
注意，只要餐品下标不同，就可以认为是不同的餐品，即便它们的美味程度相同。
\n\n\n\n
示例 1：
\n\n\n输入：deliciousness = [1,3,5,7,9]\n输出：4\n解释：大餐的美味程度组合为 (1,3) 、(1,7) 、(3,5) 和 (7,9) 。\n它们各自的美味程度之和分别为 4 、8 、8 和 16 ，都是 2 的幂。\n\n\n
示例 2：
\n\n\n输入：deliciousness = [1,1,1,3,3,3,7]\n输出：15\n解释：大餐的美味程度组合为 3 种 (1,1) ，9 种 (1,3) ，和 3 种 (1,7) 。\n\n
\n\n
提示：
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