title: K Th Distinct Or Non Repeating Element In An Array
signature: kThDistinctOrNonRepeatingElementInAnArray :: [Integer] -> Integer -> Integer -> Integer
  kThDistinctOrNonRepeatingElementInAnArray arr n k = 
test_code: import Text.Printf
  import Control.Exception (catch, SomeException)
  import Data.Typeable
  import qualified Data.List as List
  import qualified Data.Map as Map
  import qualified Data.Set as Set
  
  -- SOLUTION CODE
  -- ============================================
  
  PLACEHOLDER_CODE_BODY
  
  -- TESTING CODE 
  -- ============================================
  validateSolution :: Integer -> Integer -> Bool
  validateSolution actual expected = do
      actual == expected
  
  
  driver :: [Integer] -> Integer -> Integer -> Integer -> String
  driver arr n k expected = do
      if (validateSolution (PLACEHOLDER_FN_NAME arr n k) expected)
          then "PASSED"
      else "FAILED"
  
  main = do
      printf "TEST-0...%s\n" (driver ([2, 3, 8, 18, 20, 33, 53, 56, 60, 71, 76, 80, 81, 87, 88, 89, 92, 95]) (16) (16) (89) )
  
      printf "TEST-1...%s\n" (driver ([-78, 6, 32, 52, -12, -32, 22, -40, -82, 24, 30, 10, -40]) (8) (6) (-32) )
  
      printf "TEST-2...%s\n" (driver ([0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1]) (7) (5) (-1) )
  
      printf "TEST-3...%s\n" (driver ([3, 28, 55, 21, 42, 60, 96, 83, 98, 75, 29, 73, 51, 21, 27, 65, 19, 47, 12, 81, 19, 94, 50, 43, 21, 32, 52, 44, 52, 91, 49, 59, 52, 10, 75, 86, 46, 43, 3, 49, 70, 60, 77, 99, 27, 63]) (40) (39) (-1) )
  
      printf "TEST-4...%s\n" (driver ([-96, -90, -76, -44, -16, -8, 0, 0, 2, 2, 8, 14, 16, 18, 18, 20, 20, 28, 34, 44, 68, 74, 84, 90]) (23) (12) (44) )
  
      printf "TEST-5...%s\n" (driver ([0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0]) (10) (8) (-1) )
  
      printf "TEST-6...%s\n" (driver ([3, 4, 5, 8, 9, 15, 26, 26, 26, 35, 39, 40, 42, 43, 45, 45, 48, 52, 54, 56, 57, 67, 74, 77, 79, 80, 81, 86, 87, 92, 95, 97]) (26) (24) (-1) )
  
      printf "TEST-7...%s\n" (driver ([-76, -24, -12, 66, -40, 26, 72, 46, -56, 58, -68, 2, -82]) (6) (10) (-1) )
  
      printf "TEST-8...%s\n" (driver ([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, 1]) (27) (17) (-1) )
  
      printf "TEST-9...%s\n" (driver ([29, 83, 32, 75, 5, 22, 68, 64, 36, 18, 7, 63, 16, 42, 77, 61, 1, 26, 12, 41, 67, 85, 85, 35, 94, 18, 14, 65, 8, 55, 44, 34, 48, 23, 8, 27, 86, 2, 51, 91]) (28) (24) (65) )
  
source_py: def k_th_distinct_or_non_repeating_element_in_an_array(arr, n, k):
      dist_count = 0
      for i in range(n):
          j = 0
          while (j < n):
              if ((i != j) and (arr[j] == arr[i])):
                  break
              j += 1
          if (j == n):
              dist_count += 1
          if (dist_count == k):
              return arr[i]
      return (- 1)
source_cpp: int k_th_distinct_or_non_repeating_element_in_an_array(vector<int> arr, int n, int k) {
    int dist_count = 0;
    for ( int i = 0;
    i < n;
    i ++ ) {
      int j;
      for ( j = 0;
      j < n;
      j ++ ) if ( i != j && arr [ j ] == arr [ i ] ) break;
      if ( j == n ) dist_count ++;
      if ( dist_count == k ) return arr [ i ];
    }
    return - 1;
  }