title: Pair With Given Product Set 1 Find If Any Pair Exists
signature: class Solution {
  
      public bool PairWithGivenProductSet1FindIfAnyPairExists(List<int> arr, int n, int x) {
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(bool actual, bool expected){
              return new JavaScriptSerializer().Serialize(actual) == new JavaScriptSerializer().Serialize(expected);
          }
  
          public string driver(List<int> arr, int n, int x, bool expected){
              try{
                PLACEHOLDER_CLS_NAME solution_cls = new PLACEHOLDER_CLS_NAME();
                bool pred_result = solution_cls.PLACEHOLDER_FN_NAME(arr, n, x); 
                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>{10, 20, 9, 40}, 4, 400, 
                  true
              );
              Console.WriteLine(string.Format(
                  "TEST-0...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{1, -10, 20, 9, -40}, 5, 400, 
                  true
              );
              Console.WriteLine(string.Format(
                  "TEST-1...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{0, 0, 0, 0, 0, 1, 1, 1, 1}, 7, 8, 
                  false
              );
              Console.WriteLine(string.Format(
                  "TEST-2...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{4, 10, 20, 9, -40}, 5, -400, 
                  true
              );
              Console.WriteLine(string.Format(
                  "TEST-3...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-90, -86, -76, -72, -70, -62, -56, -50, -18, -12, -10, 4, 16, 26, 42, 48, 52, 54, 54, 70, 84, 86, 88, 98}, 23, 23, 
                  false
              );
              Console.WriteLine(string.Format(
                  "TEST-4...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{1}, 0, 0, 
                  false
              );
              Console.WriteLine(string.Format(
                  "TEST-5...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{4, 7, 14, 14, 16, 18, 19, 20, 22, 24, 29, 38, 38, 38, 40, 40, 46, 46, 47, 51, 51, 52, 55, 56, 56, 62, 62, 62, 78, 79, 81, 84, 86, 88, 89, 89, 89}, 23, 32, 
                  false
              );
              Console.WriteLine(string.Format(
                  "TEST-6...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{72, 80, -82, 24, -98, 90, -32, -56, -22, 8, -12, 8, -78, 60, -62, 50, 12, -60, 10, -54, 74, 98, 26, 56, 24}, 21, 19, 
                  false
              );
              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}, 22, 18, 
                  false
              );
              Console.WriteLine(string.Format(
                  "TEST-8...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{93, 40, 48, 99, 95, 59, 43, 58, 79, 70, 28}, 9, 5, 
                  false
              );
              Console.WriteLine(string.Format(
                  "TEST-9...{0}",
                  result)
              );
          }
      }
  }
  
source_py: def pair_with_given_product_set_1_find_if_any_pair_exists(arr, n, x):
      for i in arr:
          for j in arr:
              if ((i * j) == x):
                  return True
      return False
source_cpp: bool pair_with_given_product_set_1_find_if_any_pair_exists(vector<int> arr, int n, int x) {
    for ( int i = 0;
    i < n - 1;
    i ++ ) for ( int j = i + 1;
    i < n;
    i ++ ) if ( arr [ i ] * arr [ j ] == x ) return true;
    return false;
  }