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 ...

So, you’re looking to get better at LeetCode, huh? It can feel like a huge mountain to climb with all those problems. But honestly, it’s not just about grinding through endless coding challenges.

Given an integer array nums, return the number of permutations of nums that are squareful. Two permutations perm1 and perm2 are different if there is some index i such that perm1[i] != perm2[i].