using System;

​

public class Program {

/*

    Creaza o functie care inmulteste fiecare valoare dintr-un array cu numarul de elemente din array-ul respectiv.

    Exemple input - output:

    MultiplyByLength([2, 3, 1, 0]) ➞ [8, 12, 4, 0]

    MultiplyByLength([4, 1, 1]) ➞ ([12, 3, 3])

    MultiplyByLength([1, 0, 3, 3, 7, 2, 1]) ➞  [7, 0, 21, 21, 49, 14, 7]

    MultiplyByLength([0]) ➞ ([0])

*/

        public static int[] MultiplyByLength(int[] arr) {

            //Code your solution here

            return new []{0};

        }

​

        public static void Main(string[] args) {

            int[] arr1 = new int[] {3, 0, 5, 8}; //12 0 20 32

            int[] arr2 = new int[] {10, 5, 6, 7, 3}; // 50 25 30 35 15

            int[] arr3 = new int[] {35, 46, 210}; // 105 138 630

            int[] arr4 = new int[] {0}; //0

​

            MultiplyByLength(arr1);

            MultiplyByLength(arr2);

            MultiplyByLength(arr3);

            MultiplyByLength(arr4);

            Console.WriteLine("[{0}]", string.Join(", ", arr1));

            Console.WriteLine("[{0}]", string.Join(", ", arr2));

            Console.WriteLine("[{0}]", string.Join(", ", arr3));

            Console.WriteLine("[{0}]", string.Join(", ", arr4));

    }

}

/*

My solution:

            for(int i = 0; i < arr.Length; i++) {

                arr[i] *= arr.Length;

            }

            return arr;

*/