title: Maximum Possible Difference Two Subsets Array
signature: def maximumPossibleDifferenceTwoSubsetsArray(arr: List[Int], n: Int) = {
test_code: import scala.collection.mutable.HashMap
  import scala.collection.immutable.HashSet
  
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  
  // TESTING CODE 
  // ============================================
  def validateSolution(actual: Int , expected: Int): Boolean = {
      actual.toString == expected.toString
  }
  
  def driver(arr: List[Int], n: Int, expected: Int): String = {
      try {
          if (validateSolution(PLACEHOLDER_FN_NAME(arr, n),expected)) {
              "PASSED"
          } else{
              "FAILED"
          }
      }catch{
          case e: Exception => {e.getClass.getName}
      }
  
  }
  object QuestionEvaluator extends App {
  
      println(s"TEST-0...${driver(
        List(5, 14, 15, 21, 0, 0, 42, 0, 0, 0, 0, 48, 0, 0, 53, 60, 62, 69, 69, 79, 82, 86, 96), 15, 
        198    
      )}")   
  
  
      println(s"TEST-1...${driver(
        List(-54, 0, -22, 94, 58, 0, -12, 84, 0, 0, -34, 16, -10, -32, 50, -78, 68, -52, -64, 66, 0, 0, -38, -18, -84, -66, -36, 64, -12, 44, 48, 8, 42), 28, 
        1100    
      )}")   
  
  
      println(s"TEST-2...${driver(
        List(0, 0, 0, 1), 2, 
        0    
      )}")   
  
  
      println(s"TEST-3...${driver(
        List(63, 49, 18, 36, 21, 30, 45, 87), 6, 
        217    
      )}")   
  
  
      println(s"TEST-4...${driver(
        List(-96, 0, 0, -72, -62, -56, -52, -44, 0, 0, -28, -22, -20, -12, 0, 0, -2, 2, 2, 4, 36, 44, 46, 50, 50, 54, 66, 92), 18, 
        468    
      )}")   
  
  
      println(s"TEST-5...${driver(
        List(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0), 34, 
        1    
      )}")   
  
  
      println(s"TEST-6...${driver(
        List(1, 2, 8, 12, 0, 0, 14, 17, 18, 27, 28, 31, 34, 37, 38, 42, 43, 45, 49, 52, 53, 0, 0, 58, 62, 66, 71, 74, 87, 93, 96, 99), 25, 
        671    
      )}")   
  
  
      println(s"TEST-7...${driver(
        List(0, -28, -30, 86, 0, -80, 76, -2, 28, 0, 0, 84, 0, 0, -88, 0, 42, 16, 0, 0, 78, -8, -46, -6, 0, 0, 0, -12, -32, -72, 84, -82, 76, -84, 80, -50, 90, -50, -14, -82, 78, 48, -10, 86, 34, -20, -76, 58), 28, 
        710    
      )}")   
  
  
      println(s"TEST-8...${driver(
        List(0, 1), 1, 
        0    
      )}")   
  
  
      println(s"TEST-9...${driver(
        List(83, 86, 57, 18, 98, 52, 1, 37, 11, 49, 10, 67, 2, 60, 30, 42, 8, 97, 25, 55, 5, 75, 9, 67), 16, 
        703    
      )}")   
  
  }
  
source_py: def maximum_possible_difference_two_subsets_array(arr, n):
      SubsetSum_1 = 0
      SubsetSum_2 = 0
      for i in range(0, n):
          isSingleOccurance = True
          for j in range((i + 1), n):
              if (arr[i] == arr[j]):
                  isSingleOccurance = False
                  arr[i] = arr[j] = 0
                  break
          if (isSingleOccurance == True):
              if (arr[i] > 0):
                  SubsetSum_1 += arr[i]
              else:
                  SubsetSum_2 += arr[i]
      return abs((SubsetSum_1 - SubsetSum_2))
source_cpp: int maximum_possible_difference_two_subsets_array(vector<int> arr, int n) {
    int SubsetSum_1 = 0, SubsetSum_2 = 0;
    for ( int i = 0;
    i <= n - 1;
    i ++ ) {
      bool isSingleOccurance = true;
      for ( int j = i + 1;
      j <= n - 1;
      j ++ ) {
        if ( arr [ i ] == arr [ j ] ) {
          isSingleOccurance = false;
          arr [ i ] = arr [ j ] = 0;
          break;
        }
      }
      if ( isSingleOccurance ) {
        if ( arr [ i ] > 0 ) SubsetSum_1 += arr [ i ];
        else SubsetSum_2 += arr [ i ];
      }
    }
    return abs ( SubsetSum_1 - SubsetSum_2 );
  }