When it comes to LEGO and sorting, the idea is usually to sort bricks by color, which is a great way to help keep your sanity. And if you want to buy more, you may need to save your pennies and so on.

Whis and Beerus are playing a new game today. They form a tower of N coins and make a move in alternate turns. Beerus plays first. In one step, the player can remove either 1, X, or Y coins from the ...

1) This problem is a classic **Dynamic Programming** problem. 2) Strategy → Use a bottom-up DP approach to count combinations (not permutations). 3) Define dp[i][j] = number of ways to make sum ‘j’ ...