title: Check Possible Sort Array Conditional Swapping Adjacent Allowed
signature: pub fn check_possible_sort_array_conditional_swapping_adjacent_allowed(arr: Vec<i32>, n: i32) -> bool {
test_code: use std::collections::HashMap;
  use std::collections::HashSet;
  use std::cmp::*;
  use std::collections::*;
  use std::fmt::*; 
  
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  pub fn validate_solution(actual: bool, expected: bool)->bool{
  return actual==expected
  }
  pub fn driver(arr: Vec<i32>, n: i32, expected: bool)->String{
      if validate_solution(PLACEHOLDER_FN_NAME(arr, n), expected) {
        return "PASSED".to_string();
      };
      return "FAILED".to_string();
  
  }
  
  fn main() {
      println!("TEST-0...{}", driver(
        Vec::from([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
      ));
      
      println!("TEST-1...{}", driver(
        Vec::from([-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
      ));
      
      println!("TEST-2...{}", driver(
        Vec::from([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
      ));
      
      println!("TEST-3...{}", driver(
        Vec::from([48, 66, 83, 12, 77, 98, 18, 33, 21, 16, 28, 24, 46, 43]), 13, 
        false
      ));
      
      println!("TEST-4...{}", driver(
        Vec::from([-92, -58, -36, -28, -6, 2, 4, 26, 48, 58, 60, 62, 62, 98]), 10, 
        true
      ));
      
      println!("TEST-5...{}", driver(
        Vec::from([0, 0, 0, 1, 0, 1]), 4, 
        true
      ));
      
      println!("TEST-6...{}", driver(
        Vec::from([22, 38, 41, 41, 42, 51, 54, 58, 68, 76, 80, 85]), 9, 
        true
      ));
      
      println!("TEST-7...{}", driver(
        Vec::from([84, -38, 52, -72, -24, 82, 54, 74, 0]), 8, 
        false
      ));
      
      println!("TEST-8...{}", driver(
        Vec::from([0, 1, 1]), 2, 
        true
      ));
      
      println!("TEST-9...{}", driver(
        Vec::from([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
      ));
      
  }
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;
  }