Use a pseudo programming language to find the largest number (Maximum element) among a1, a2,........,an

program bust be solved by python anaconda .My variant number is ( 21 )

Write a java code for the following . Write a Java program to print the unique elements along with their frequency in the given (3x 3) integer matrix.                                 ex. java sample output

Write Algorithm to Conversion from an Arabic number to a modern Roman number.in: decimal number n (0 ≤ n)out: sequence R =
s0, s1,...,s12 representing the structure of the Roman number (Ri = number of primitives Vi in n for i ∈ [0, 12])constant: sequence P =
1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1 of primitive Roman numberslocal: remainder x to be converted (0 ≤ x ≤ n); coefficient c for a primitive Romannumbers (for other than P0, 0 ≤ c ≤ 3)