CSES Apple Division Explained | Pick / Not Pick Recursion Tree Explained скачать в хорошем качестве

CSES Apple Division Explained | Pick / Not Pick Recursion Tree Explained

In this video, we solve the CSES Apple Division problem using a clean pick / not pick recursion approach. We build the recursion tree where each apple can either go into set S1 or not. Instead of calculating both subset sums, we use the key idea: S2 = total_sum − S1. By checking all possible sums of S1 and minimizing |S1 − S2|, we get the minimum possible difference. This video focuses on: • Recursion tree intuition • Pick / not pick strategy • Why calculating only one subset is enough • Brute force solution within constraints Perfect for understanding subset problems and recursion thinking. #CSES #AppleDivision #Recursion #SubsetSum #DSA #CompetitiveProgramming