title: Check Possible Sort Array Conditional Swapping Adjacent Allowed
signature: class Solution {
  
      public bool CheckPossibleSortArrayConditionalSwappingAdjacentAllowed(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(bool actual, bool expected){
              return new JavaScriptSerializer().Serialize(actual) == new JavaScriptSerializer().Serialize(expected);
          }
  
          public string driver(List<int> arr, int n, bool expected){
              try{
                PLACEHOLDER_CLS_NAME solution_cls = new PLACEHOLDER_CLS_NAME();
                bool 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>{1, 4, 12, 16, 37, 44, 47, 51, 55, 57, 57, 62, 62, 62, 64, 69, 69, 70, 72, 81, 81, 88, 89, 97}, 15, 
                  true
              );
              Console.WriteLine(string.Format(
                  "TEST-0...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-86, 0, 14, -16, -12, -72, 62, -34, -72, 30, 84, -60, 84, -64, 50, 74, 18, -82, -64, -64, -74, -56, 86, 84, -32, -10, 20, 4, 8, 96, 82, 26, 42}, 18, 
                  false
              );
              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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 31, 
                  true
              );
              Console.WriteLine(string.Format(
                  "TEST-2...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{48, 66, 83, 12, 77, 98, 18, 33, 21, 16, 28, 24, 46, 43}, 13, 
                  false
              );
              Console.WriteLine(string.Format(
                  "TEST-3...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{-92, -58, -36, -28, -6, 2, 4, 26, 48, 58, 60, 62, 62, 98}, 10, 
                  true
              );
              Console.WriteLine(string.Format(
                  "TEST-4...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{0, 0, 0, 1, 0, 1}, 4, 
                  true
              );
              Console.WriteLine(string.Format(
                  "TEST-5...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{22, 38, 41, 41, 42, 51, 54, 58, 68, 76, 80, 85}, 9, 
                  true
              );
              Console.WriteLine(string.Format(
                  "TEST-6...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{84, -38, 52, -72, -24, 82, 54, 74, 0}, 8, 
                  false
              );
              Console.WriteLine(string.Format(
                  "TEST-7...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{0, 1, 1}, 2, 
                  true
              );
              Console.WriteLine(string.Format(
                  "TEST-8...{0}",
                  result)
              );result = runner.driver(
                  new List<int>{63, 31, 14, 19, 77, 64, 62, 23, 22, 19, 39, 9, 79, 1, 87, 29, 58, 3, 3, 39, 1, 39, 35, 64, 64}, 13, 
                  false
              );
              Console.WriteLine(string.Format(
                  "TEST-9...{0}",
                  result)
              );
          }
      }
  }
  
source_py: def check_possible_sort_array_conditional_swapping_adjacent_allowed(arr, n):
      for i in range(0, (n - 1)):
          if (arr[i] > arr[(i + 1)]):
              if ((arr[i] - arr[(i + 1)]) == 1):
                  (arr[i], arr[(i + 1)]) = (arr[(i + 1)], arr[i])
              else:
                  return False
      return True
source_cpp: bool check_possible_sort_array_conditional_swapping_adjacent_allowed(vector<int> arr, int n) {
    for ( int i = 0;
    i < n - 1;
    i ++ ) {
      if ( arr [ i ] > arr [ i + 1 ] ) {
        if ( arr [ i ] - arr [ i + 1 ] == 1 ) swap ( arr [ i ], arr [ i + 1 ] );
        else return false;
      }
    }
    return true;
  }