leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
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1863.cpp (467B)

      1 class Solution {
      2   public:
      3     int subsetXORSum(const vector<int> &nums) const {
      4         const int n = size(nums);
      5         int res = 0;
      6 
      7         for (uint16_t mask = 1; mask < (1 << n); mask++) {
      8             uint16_t crnt = mask, acc = 0;
      9             while (crnt) {
     10                 const uint8_t idx = countr_zero(crnt);
     11                 acc ^= nums[idx];
     12                 crnt ^= 1 << idx;
     13             }
     14             res += acc;
     15         }
     16 
     17         return res;
     18     }
     19 };