title: Minimum Sum Two Numbers Formed Digits Array
signature: class Solution {
  
      public long MinimumSumTwoNumbersFormedDigitsArray(List<int> arr, int n) {
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(long actual, long expected){
              return new JavaScriptSerializer().Serialize(actual) == new JavaScriptSerializer().Serialize(expected);
          }
  
          public string driver(List<int> arr, int n, long expected){
              try{
                PLACEHOLDER_CLS_NAME solution_cls = new PLACEHOLDER_CLS_NAME();
                long pred_result = solution_cls.PLACEHOLDER_FN_NAME(arr, n); 
                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, 4, 5, 10, 14, 16, 18, 42, 43, 43, 45, 46, 51, 52, 53, 58, 61, 66, 79, 81, 82, 84}, 19, 
                  4183488835
              );
              Console.WriteLine(string.Format(
                  "TEST-0...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-90, -86, -76, -50, -46, -30, -26, -22, -22, -20, -2, -2, 8, 22, 32, 40, 48, 48, 56, 58, 60, 76, 82, 82, 94, 98}, 25, 
                  -107220607602444
              );
              Console.WriteLine(string.Format(
                  "TEST-1...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{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}, 23, 
                  1222222
              );
              Console.WriteLine(string.Format(
                  "TEST-2...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{45, 79}, 1, 
                  45
              );
              Console.WriteLine(string.Format(
                  "TEST-3...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-90, -68, -38, -34, -4, 6, 10, 28, 48, 52, 54, 68, 88, 90}, 11, 
                  -10095534
              );
              Console.WriteLine(string.Format(
                  "TEST-4...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 22, 
                  122222
              );
              Console.WriteLine(string.Format(
                  "TEST-5...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{4, 8, 8, 23, 26, 27, 30, 42, 44, 55, 59, 64, 67, 69, 74, 77, 82, 82, 87, 96, 97}, 17, 
                  615688689
              );
              Console.WriteLine(string.Format(
                  "TEST-6...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-98, -98, -86, -82, -76, -76, -66, -64, -62, -60, -48, -46, -42, -36, -36, -32, -28, -18, -18, -4, 0, 0, 2, 4, 10, 18, 30, 46, 50, 52, 62, 70, 72, 76, 80, 88, 88, 94, 96}, 32, 
                  -214463225281903248
              );
              Console.WriteLine(string.Format(
                  "TEST-7...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{0, 0, 0, 0, 0, 0, 1, 1, 1, 1}, 6, 
                  0
              );
              Console.WriteLine(string.Format(
                  "TEST-8...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{7, 8, 9, 9, 14, 14, 16, 17, 22, 24, 32, 32, 36, 38, 42, 42, 43, 45, 47, 53, 54, 56, 58, 58, 61, 63, 64, 68, 69, 69, 71, 71, 71, 72, 73, 74, 75, 82, 86, 86, 87, 90, 96, 97, 98}, 25, 
                  8964536953959
              );
              Console.WriteLine(string.Format(
                  "TEST-9...{0}",
                  result)
              );
          }
      }
  }
  
source_py: def minimum_sum_two_numbers_formed_digits_array(arr, n):
      arr.sort()
      a = 0
      b = 0
      for i in range(n):
          if ((i % 2) != 0):
              a = ((a * 10) + arr[i])
          else:
              b = ((b * 10) + arr[i])
      return (a + b)
source_cpp: int minimum_sum_two_numbers_formed_digits_array(vector<int> arr, int n) {
    sort(arr.begin(), arr.end());
    int a = 0, b = 0;
    for ( int i = 0;
    i < n;
    i ++ ) {
      if ( i & 1 ) a = a * 10 + arr [ i ];
      else b = b * 10 + arr [ i ];
    }
    return a + b;
  }