Products with product_id = 1 is ordered in February a total of (60 + 70) = 130. Products with product_id = 2 is ordered in February a total of 80. Products with product_id = 3 is ordered in February a ...
User 6 logged into their account 3 times but only once in 2020, so we include this login in the result table. User 8 logged into their account 2 times in 2020, once in February and once in December.
So, you want to get better at those tricky LeetCode Python problems, huh? It’s a common goal, especially if you’re aiming for tech jobs. Many people try to just grind through tons of problems, but ...