text: Treasure and Cities | k is current index and col is previous color . ; base case ; check if color of this city is equal to prev visited city ; return max of both options ; Driver code ; Initially begin with color 0
code: function MaxProfit ( treasure , color , n , k , col , A , B ) { let sum = 0 ; if ( k == n ) return 0 ; if ( col == color [ k ] ) sum += Math . max ( A * treasure [ k ] + MaxProfit ( treasure , color , n , k + 1 , color [ k ] , A , B ) , MaxProfit ( treasure , color , n , k + 1 , col , A , B ) ) ; else sum += Math . max ( B * treasure [ k ] + MaxProfit ( treasure , color , n , k + 1 , color [ k ] , A , B ) , MaxProfit ( treasure , color , n , k + 1 , col , A , B ) ) ; return sum ; } let A = - 5 , B = 7 ; let treasure = [ 4 , 8 , 2 , 9 ] ; let color = [ 2 , 2 , 6 , 2 ] ; let n = color . length ; document . write ( MaxProfit ( treasure , color , n , 0 , 0 , A , B ) ) ;