title: Find Minimum Difference Pair
signature: function find_minimum_difference_pair(arr, n)
source_py: def find_minimum_difference_pair(arr, n):
      diff = (10 ** 20)
      for i in range((n - 1)):
          for j in range((i + 1), n):
              if (abs((arr[i] - arr[j])) < diff):
                  diff = abs((arr[i] - arr[j]))
      return diff
source_cpp: int find_minimum_difference_pair(vector<int> arr, int n) {
    int diff = INT_MAX;
    for ( int i = 0;
    i < n - 1;
    i ++ ) for ( int j = i + 1;
    j < n;
    j ++ ) if ( abs ( arr [ i ] - arr [ j ] ) < diff ) diff = abs ( arr [ i ] - arr [ j ] );
    return diff;
  }
question_info.test_code: 
  
  -- SOLUTION CODE
  -- ============================================
  PLACEHOLDER_CODE_BODY
  
  -- TESTING CODE 
  -- ============================================
  function isCorrect(actual, expected)
      if type(expected) ~= type(actual) then
          return false
      end
      
      if type(expected) == 'table' then
          for k,v_expected in pairs(expected) do
              
              if actual[k] == nil then
                  return false
              end
              local v_actual = actual[k]
              if not isCorrect(v_actual, v_expected) then
                  return false
              end
              actual[k]=nil
          end
      
          if next(actual) then 
              return false
          end
          return true
      else
          return actual == expected
      end
  end
  
  function validateSolution(actual, expected)
      return isCorrect(actual,expected)
  end
  
  function driver(arr, n, expected)
      local exec_result;
      local status, error_msg = pcall(function () 
          exec_result=PLACEHOLDER_FN_NAME(arr, n) 
      end)
      if status then
          if validateSolution(exec_result,expected) then
              return "PASSED"
          end
          return "FAILED"
      else
          return string.format("ERROR=%s",string.gsub(error_msg,".*:[%d]+: ",""))
      end
  end
      
  function main()
      result = driver({1, 1, 2, 3, 5, 8, 10, 11, 15, 15, 16, 20, 26, 28, 30, 30, 33, 33, 39, 50, 50, 50, 54, 62, 66, 68, 69, 69, 74, 74, 75, 75, 76, 78, 82, 83, 85, 86, 86, 89, 89, 91, 91, 92, 92, 92, 93, 94, 98}, 32, 0)
      print(string.format("TEST-0...%s",result))
  
      result = driver({6, 6, -20, 88, -78, -18, 74, 72, 80, 76, -62, 38}, 11, 0)
      print(string.format("TEST-1...%s",result))
  
      result = driver({0, 1, 1, 1, 1}, 3, 0)
      print(string.format("TEST-2...%s",result))
  
      result = driver({75, 85, 49, 66, 44, 89, 80, 39, 64, 70, 25, 21, 81, 33, 90, 68, 51}, 16, 1)
      print(string.format("TEST-3...%s",result))
  
      result = driver({-96, -10, 0, 4, 54, 64}, 3, 10)
      print(string.format("TEST-4...%s",result))
  
      result = driver({1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0}, 41, 0)
      print(string.format("TEST-5...%s",result))
  
      result = driver({3, 3, 5, 5, 7, 7, 9, 11, 11, 18, 18, 18, 20, 29, 29, 31, 31, 32, 37, 43, 44, 46, 48, 50, 52, 52, 53, 63, 63, 65, 69, 72, 76, 76, 81, 84, 85, 86, 87, 87, 90, 94, 97, 97}, 27, 0)
      print(string.format("TEST-6...%s",result))
  
      result = driver({40, -46, 72, -28, 8, 90, 86, -90, 8, -66, -98, 6, 42, 86, 88, 42, -50, 74, -34, -16, -94, -56, -18, -18, 84, -44, 34, 80, 96, 42, -50, -92, 70, 80, 62, -38, -4, 68, 54, -14, 30, -18, -58}, 33, 0)
      print(string.format("TEST-7...%s",result))
  
      result = 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}, 26, 0)
      print(string.format("TEST-8...%s",result))
  
      result = driver({15, 41, 32, 19, 68, 36, 61, 59, 5, 91, 53, 95, 10, 64, 15, 32, 14, 64, 48, 70, 85, 19, 83, 2, 33, 58, 93, 88, 21, 88, 45, 45, 18, 8}, 24, 0)
      print(string.format("TEST-9...%s",result))
  
  end
  
  main()
question_info.entry_cls_name: Solution
question_info.test_list: [{"idx": 0, "outputs": 0, "inputs": {"arr": [1, 1, 2, 3, 5, 8, 10, 11, 15, 15, 16, 20, 26, 28, 30, 30, 33, 33, 39, 50, 50, 50, 54, 62, 66, 68, 69, 69, 74, 74, 75, 75, 76, 78, 82, 83, 85, 86, 86, 89, 89, 91, 91, 92, 92, 92, 93, 94, 98], "n": 32}}, {"idx": 1, "outputs": 0, "inputs": {"arr": [6, 6, -20, 88, -78, -18, 74, 72, 80, 76, -62, 38], "n": 11}}, {"idx": 2, "outputs": 0, "inputs": {"arr": [0, 1, 1, 1, 1], "n": 3}}, {"idx": 3, "outputs": 1, "inputs": {"arr": [75, 85, 49, 66, 44, 89, 80, 39, 64, 70, 25, 21, 81, 33, 90, 68, 51], "n": 16}}, {"idx": 4, "outputs": 10, "inputs": {"arr": [-96, -10, 0, 4, 54, 64], "n": 3}}, {"idx": 5, "outputs": 0, "inputs": {"arr": [1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0], "n": 41}}, {"idx": 6, "outputs": 0, "inputs": {"arr": [3, 3, 5, 5, 7, 7, 9, 11, 11, 18, 18, 18, 20, 29, 29, 31, 31, 32, 37, 43, 44, 46, 48, 50, 52, 52, 53, 63, 63, 65, 69, 72, 76, 76, 81, 84, 85, 86, 87, 87, 90, 94, 97, 97], "n": 27}}, {"idx": 7, "outputs": 0, "inputs": {"arr": [40, -46, 72, -28, 8, 90, 86, -90, 8, -66, -98, 6, 42, 86, 88, 42, -50, 74, -34, -16, -94, -56, -18, -18, 84, -44, 34, 80, 96, 42, -50, -92, 70, 80, 62, -38, -4, 68, 54, -14, 30, -18, -58], "n": 33}}, {"idx": 8, "outputs": 0, "inputs": {"arr": [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], "n": 26}}, {"idx": 9, "outputs": 0, "inputs": {"arr": [15, 41, 32, 19, 68, 36, 61, 59, 5, 91, 53, 95, 10, 64, 15, 32, 14, 64, 48, 70, 85, 19, 83, 2, 33, 58, 93, 88, 21, 88, 45, 45, 18, 8], "n": 24}}]
question_info.extension: lua
question_info.entry_fn_name: find_minimum_difference_pair
question_info.test_case_ids: 0 1 2 3 4 5 6 7 8 9
question_info.commands: lua __FILENAME__