https://leetcode.com/problems/product-of-array-except-self/description/?envType=study-plan-v2&envId=top-interview-150 class Solution { public: vector<int> productExceptSelf(vector<int>& nums)

https://leetcode.com/problems/insert-delete-getrandom-o1/description/?envType=study-plan-v2&envId=top-interview-150 class RandomizedSet { public: unordered_map<int, int> Map; vector<int>

https://leetcode.com/problems/h-index/description/?envType=study-plan-v2&envId=top-interview-150 class Solution { public: int hIndex(vector<int>& citations) { int n = citations.

https://leetcode.com/problems/jump-game-ii/description/?envType=study-plan-v2&envId=top-interview-150 class Solution { public: int jump(vector<int>& nums) { int n = nums.

https://leetcode.com/problems/jump-game/?envType=study-plan-v2&envId=top-interview-150 class Solution { public: bool canJump(vector<int>& nums) { int mx = 0; for