Return minimum of following two Not including current char in answer Including current char
return Math . min ( shortestSeq ( Arrays . copyOfRange ( S , 1 , S . length ) , T , m - 1 , n ) , 1 + shortestSeq ( Arrays . copyOfRange ( S , 1 , S . length ) , Arrays . copyOfRange ( T , k + 1 , T . length ) , m - 1 , n - k - 1 ) ) ; }