#include #include #include #include class Solution { public: std::vector getSumAbsoluteDifferences(const std::vector &nums) { auto total = std::accumulate(nums.begin(), nums.end(), 0); auto left = 0; std::vector result; for (auto i = 0u; i < nums.size(); ++i) { auto left_diff = i * nums[i] - left; auto right = total - nums[i] - left; auto right_diff = right - (nums.size() - i - 1) * nums[i]; result.push_back(left_diff + right_diff); left += nums[i]; } return result; } }; int main() { Solution s; assert((s.getSumAbsoluteDifferences(std::vector{2, 3, 5}) == std::vector{4, 3, 5})); assert((s.getSumAbsoluteDifferences(std::vector{1, 4, 6, 8, 10}) == std::vector{24, 15, 13, 15, 21})); return 0; }