1863. Sum of All Subset XOR Totals Easy

1/**
2 * [1863] Sum of All Subset XOR Totals
3 *
4 * The XOR total of an array is defined as the bitwise XOR of all its elements, or 0 if the array is empty.
5 * 
6 * 	For example, the XOR total of the array [2,5,6] is 2 XOR 5 XOR 6 = 1.
7 * 
8 * Given an array nums, return the sum of all XOR totals for every subset of nums. 
9 * Note: Subsets with the same elements should be counted multiple times.
10 * An array a is a subset of an array b if a can be obtained from b by deleting some (possibly zero) elements of b.
11 *  
12 * Example 1:
13 * 
14 * Input: nums = [1,3]
15 * Output: 6
16 * Explanation: The 4 subsets of [1,3] are:
17 * - The empty subset has an XOR total of 0.
18 * - [1] has an XOR total of 1.
19 * - [3] has an XOR total of 3.
20 * - [1,3] has an XOR total of 1 XOR 3 = 2.
21 * 0 + 1 + 3 + 2 = 6
22 * 
23 * Example 2:
24 * 
25 * Input: nums = [5,1,6]
26 * Output: 28
27 * Explanation: The 8 subsets of [5,1,6] are:
28 * - The empty subset has an XOR total of 0.
29 * - [5] has an XOR total of 5.
30 * - [1] has an XOR total of 1.
31 * - [6] has an XOR total of 6.
32 * - [5,1] has an XOR total of 5 XOR 1 = 4.
33 * - [5,6] has an XOR total of 5 XOR 6 = 3.
34 * - [1,6] has an XOR total of 1 XOR 6 = 7.
35 * - [5,1,6] has an XOR total of 5 XOR 1 XOR 6 = 2.
36 * 0 + 5 + 1 + 6 + 4 + 3 + 7 + 2 = 28
37 * 
38 * Example 3:
39 * 
40 * Input: nums = [3,4,5,6,7,8]
41 * Output: 480
42 * Explanation: The sum of all XOR totals for every subset is 480.
43 * 
44 *  
45 * Constraints:
46 * 
47 * 	1 <= nums.length <= 12
48 * 	1 <= nums[i] <= 20
49 * 
50 */
51pub struct Solution {}
52
53// problem: https://leetcode.com/problems/sum-of-all-subset-xor-totals/
54// discuss: https://leetcode.com/problems/sum-of-all-subset-xor-totals/discuss/?currentPage=1&orderBy=most_votes&query=
55
56// submission codes start here
57
58impl Solution {
59    pub fn subset_xor_sum(nums: Vec<i32>) -> i32 {
60        0
61    }
62}
63
64// submission codes end
65
66#[cfg(test)]
67mod tests {
68    use super::*;
69
70    #[test]
71    fn test_1863() {
72    }
73}
74