title: Minimum Operations Make Gcd Array Multiple K
signature: class Solution {
  
      public int MinimumOperationsMakeGcdArrayMultipleK(List<int> a, int n, int k) {
test_code: using System;
  using System.Numerics;
  using System.Diagnostics;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using System.Security.Cryptography;
  using System.Web.UI;
  using System.Web.Script.Serialization;
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  namespace EvaluatePrediction {
      class TestRunner {
          public bool ValidateSolution(int actual, int expected){
              return new JavaScriptSerializer().Serialize(actual) == new JavaScriptSerializer().Serialize(expected);
          }
  
          public string driver(List<int> a, int n, int k, int expected){
              try{
                PLACEHOLDER_CLS_NAME solution_cls = new PLACEHOLDER_CLS_NAME();
                int pred_result = solution_cls.PLACEHOLDER_FN_NAME(a, n, k); 
                if (ValidateSolution(
                      pred_result,
                      expected)){
                  return "PASSED";
                }
                return "FAILED";
              } 
              catch (Exception exception_obj)
              {
                return exception_obj.GetType().FullName;
              }
          }
          static void Main(string[] args) {
              TestRunner runner = new TestRunner();
              String result;
              result = runner.driver(
                  new List<int>{3, 7, 27, 32, 36, 37, 44, 48, 50, 64, 86}, 5, 10, 
                  19
              );
              Console.WriteLine(string.Format(
                  "TEST-0...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-22, 6, -20, 60, -74, 98, 52, -22}, 5, 4, 
                  130
              );
              Console.WriteLine(string.Format(
                  "TEST-1...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 23, 29, 
                  661
              );
              Console.WriteLine(string.Format(
                  "TEST-2...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{77, 11, 51, 11, 84, 79, 43, 12, 14, 50, 15, 6, 85, 32, 74, 49, 7, 2, 58}, 9, 17, 
                  43
              );
              Console.WriteLine(string.Format(
                  "TEST-3...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-90, -66, -64, -58, -46, -44, -32, -30, -30, -22, -18, -14, 12, 12, 18, 34, 44, 60, 70, 70, 74, 76, 86, 98, 98}, 12, 22, 
                  778
              );
              Console.WriteLine(string.Format(
                  "TEST-4...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1}, 36, 31, 
                  1096
              );
              Console.WriteLine(string.Format(
                  "TEST-5...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{9, 22, 27, 27, 37, 53, 53, 56, 63, 73, 76, 81, 82}, 10, 11, 
                  28
              );
              Console.WriteLine(string.Format(
                  "TEST-6...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-46, 60, 80, 80, 42, -98, 30, -48, 4, -32, -78, 40, 52, 26, 88, 4, 22, 62, 88, -94, 2, 0, 58, 38, 52, -50, -52, 58, -62, 30, -38, -8, -82, -66}, 18, 19, 
                  479
              );
              Console.WriteLine(string.Format(
                  "TEST-7...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 19, 22, 
                  413
              );
              Console.WriteLine(string.Format(
                  "TEST-8...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{42, 69, 93, 82, 8, 23, 73, 1, 77, 39, 49, 4, 95, 85}, 12, 13, 
                  51
              );
              Console.WriteLine(string.Format(
                  "TEST-9...{0}",
                  result)
              );
          }
      }
  }
  
source_py: def minimum_operations_make_gcd_array_multiple_k(a, n, k):
      result = 0
      for i in range(n):
          if ((a[i] != 1) and (a[i] > k)):
              result = (result + min((a[i] % k), (k - (a[i] % k))))
          else:
              result = ((result + k) - a[i])
      return result
source_cpp: int minimum_operations_make_gcd_array_multiple_k(vector<int> a, int n, int k) {
    int result = 0;
    for ( int i = 0;
    i < n;
    ++ i ) {
      if ( a [ i ] != 1 && a [ i ] > k ) {
        result = result + min ( a [ i ] % k, k - a [ i ] % k );
      }
      else {
        result = result + k - a [ i ];
      }
    }
    return result;
  }