Untitled

class Solution {
public:
    vector<int> productExceptSelf(vector<int>& nums) {
        cin.tie(nullptr)->sync_with_stdio(0);

        int sz = nums.size();
        vector<int> prefix(sz + 9, 1), suffix(sz + 9, 1);

        for (int i = 1; i <= sz; ++i) {

            prefix[i] = prefix[i - 1] * nums[i - 1];

            suffix[sz - i + 1] = suffix[sz - i + 2] * nums[sz - i];
        }

        for (int i = 1; i <= sz; ++i) {

            nums[i - 1] = prefix[i - 1] * suffix[i + 1];
        }
        return nums;
    }
};