title: Find Sum Non Repeating Distinct Elements Array
signature: class Solution {
  
      public int FindSumNonRepeatingDistinctElementsArray(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(int actual, int expected){
              return new JavaScriptSerializer().Serialize(actual) == new JavaScriptSerializer().Serialize(expected);
          }
  
          public string driver(List<int> arr, int n, int expected){
              try{
                PLACEHOLDER_CLS_NAME solution_cls = new PLACEHOLDER_CLS_NAME();
                int 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>{5, 6, 8, 10, 21, 22, 27, 32, 35, 36, 43, 44, 46, 48, 49, 55, 60, 61, 69, 69, 71, 72, 73, 78, 88, 94}, 24, 
                  971
              );
              Console.WriteLine(string.Format(
                  "TEST-0...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{80, 94, 16, -74, 32, -64, -84, -66, -10}, 6, 
                  84
              );
              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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 27, 
                  1
              );
              Console.WriteLine(string.Format(
                  "TEST-2...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{99, 4, 96, 39, 39, 24, 15, 47, 25, 74, 7, 98, 88, 91, 62, 12, 31, 14, 48, 26, 37, 25, 11, 32, 34, 64, 72, 5, 80, 86, 6}, 15, 
                  769
              );
              Console.WriteLine(string.Format(
                  "TEST-3...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-86, -84, -84, -78, -78, -76, -74, -68, -66, -64, -60, -60, -56, -50, -42, -42, -38, -34, -32, -22, -16, -14, -10, -6, -6, 4, 4, 26, 36, 36, 54, 62, 64, 68, 70, 76, 76, 76, 84, 92, 92, 94, 96}, 27, 
                  -972
              );
              Console.WriteLine(string.Format(
                  "TEST-4...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1}, 25, 
                  1
              );
              Console.WriteLine(string.Format(
                  "TEST-5...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{3, 3, 5, 8, 32, 33, 35, 35, 42, 48, 67, 71, 71, 74, 77, 80, 94, 96, 96, 97}, 19, 
                  765
              );
              Console.WriteLine(string.Format(
                  "TEST-6...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-50, -18, -66, 76, -54, 96, 98, 26, 42, 64, -60}, 9, 
                  150
              );
              Console.WriteLine(string.Format(
                  "TEST-7...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 15, 
                  1
              );
              Console.WriteLine(string.Format(
                  "TEST-8...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{70, 21, 44, 82, 62, 41, 86}, 3, 
                  135
              );
              Console.WriteLine(string.Format(
                  "TEST-9...{0}",
                  result)
              );
          }
      }
  }
  
source_py: def find_sum_non_repeating_distinct_elements_array(arr, n):
      s = set()
      sum = 0
      for i in range(n):
          if (arr[i] not in s):
              s.add(arr[i])
      for i in s:
          sum = (sum + i)
      return sum
source_cpp: int find_sum_non_repeating_distinct_elements_array(vector<int> arr, int n) {
    int sum = 0;
    unordered_set < int > s;
    for ( int i = 0;
    i < n;
    i ++ ) {
      if ( s . find ( arr [ i ] ) == s . end ( ) ) {
        sum += arr [ i ];
        s . insert ( arr [ i ] );
      }
    }
    return sum;
  }