i'm solving this problem : https://mirror.codeforces.com/contest/1280/problem/D and my code : https://mirror.codeforces.com/contest/1280/submission/163753815

i thought this is just tree knapsack dp but for some reason, get's wrong answer for test3

dp[i][j] means (maximum number of winning region, maximum advantage of component involving i) when partitioning subtree of i into j regions

can someone tell me what's wrong with my code?