title: Integer Positive Value Positive Negative Value Array
signature: pub fn integer_positive_value_positive_negative_value_array(arr: Vec<i32>, n: i32) -> i32 {
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: i32, expected: i32)->bool{
  return actual==expected
  }
  pub fn driver(arr: Vec<i32>, n: i32, expected: i32)->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, 7, 10, 14, 15, 24, 27, 32, 33, 38, 39, 40, 42, 42, 47, 58, 75, 76, 78, 79, 83, 85, 89, 96]), 18, 
        1
      ));
      
      println!("TEST-1...{}", driver(
        Vec::from([-36, 14, -76, -70, 52, 18, 64]), 5, 
        14
      ));
      
      println!("TEST-2...{}", driver(
        Vec::from([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]), 17, 
        0
      ));
      
      println!("TEST-3...{}", driver(
        Vec::from([35, 50, 36, 50, 82, 54, 10, 45, 13, 22, 1, 41, 13, 11, 4, 43, 50, 27, 94, 57]), 15, 
        35
      ));
      
      println!("TEST-4...{}", driver(
        Vec::from([-88, -86, -84, -80, -80, -74, -72, -48, -46, -46, -44, -34, -32, -24, -22, -14, 4, 4, 8, 8, 10, 12, 20, 20, 24, 24, 24, 28, 32, 34, 36, 44, 46, 54, 54, 60, 62, 62, 62, 70, 70, 80, 88, 88, 90]), 27, 
        4
      ));
      
      println!("TEST-5...{}", driver(
        Vec::from([0, 0]), 1, 
        0
      ));
      
      println!("TEST-6...{}", driver(
        Vec::from([1, 1, 3, 6, 6, 8, 12, 13, 17, 27, 28, 31, 40, 40, 42, 43, 53, 55, 58, 60, 60, 61, 65, 66, 72, 72, 75, 80, 84, 89, 96, 97, 99]), 31, 
        1
      ));
      
      println!("TEST-7...{}", driver(
        Vec::from([52, -38, -82, 30, -66, 42, 54, -96, -46, -30, 18, -50, 96, 90, 4, 74, -22, 8, 34, 74, -46, 8, -32, 88, -96, 26, -80, 50, 92, -80, 44, 36]), 24, 
        52
      ));
      
      println!("TEST-8...{}", driver(
        Vec::from([0, 0, 0, 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]), 16, 
        0
      ));
      
      println!("TEST-9...{}", driver(
        Vec::from([38, 20, 54, 51, 11, 61, 90, 28, 23, 55, 65, 87, 99, 70, 74, 3, 68, 23, 74, 53, 80, 7, 57, 24, 66, 8, 15, 63, 18, 67, 96, 31, 63, 50]), 30, 
        38
      ));
      
  }
source_py: def integer_positive_value_positive_negative_value_array(arr, n):
      hash = dict()
      maximum = 0
      for i in arr:
          if (i < 0):
              if (abs(i) not in hash.keys()):
                  hash[abs(i)] = (- 1)
              else:
                  hash[abs(i)] -= 1
          else:
              hash[i] = (hash.get(i, 0) + 1)
      for i in arr:
          if ((i in hash.keys()) and (hash[i] > 0)):
              return i
      return (- 1)
source_cpp: int integer_positive_value_positive_negative_value_array(vector<int> arr, int n) {
    unordered_map < int, int > hash;
    int maximum = 0;
    for ( int i = 0;
    i < n;
    i ++ ) {
      if ( arr [ i ] < 0 ) hash [ abs ( arr [ i ] ) ] -= 1;
      else hash [ arr [ i ] ] += 1;
    }
    for ( int i = 0;
    i < n;
    i ++ ) if ( hash [ arr [ i ] ] != 0 ) return arr [ i ];
    return - 1;
  }