find maximum length Snake sequence path
List < Point > path = findPath ( lookup , mat , max_row , max_col ) ; System . out . print ( " Snake ▁ sequence ▁ is : " ) ; for ( Point it : path ) System . out . print ( " " ▁ + ▁ mat [ it . x ] [ it . y ] ▁ + ▁ " ( " ▁ + ▁ it . x ▁ + ▁ " , " ▁ + ▁ it . y ▁ + ▁ " ) "); }