B-E : chess
Diff : V-Hard(8)
Comment :
When I see it : OH, a little hard DP.
When I see "up, down, left and right" : ????, DFS?
When I’m coding : AHHHHHHHHH, params are too hard!!!!
Later : AH.
~10 minutes later :
//change folder name > chess -> chess(NULLSCORE)
Final : score : 5
My idea : give up now.