title: Maximum Product Subset Array
signature: function maximumProductSubsetArray(a: Array<number>, n: number): number {
source_py: def maximum_product_subset_array(a, n):
      if (n == 1):
          return a[0]
      max_neg = (- 999999999999)
      count_neg = 0
      count_zero = 0
      prod = 1
      for i in range(n):
          if (a[i] == 0):
              count_zero += 1
              continue
          if (a[i] < 0):
              count_neg += 1
              max_neg = max(max_neg, a[i])
          prod = (prod * a[i])
      if (count_zero == n):
          return 0
      if (count_neg & 1):
          if ((count_neg == 1) and (count_zero > 0) and ((count_zero + count_neg) == n)):
              return 0
          prod = int((prod / max_neg))
      return prod
source_cpp: int maximum_product_subset_array(vector<int> a, int n) {
    if ( n == 1 ) return a [ 0 ];
    int max_neg = INT_MIN;
    int count_neg = 0, count_zero = 0;
    int prod = 1;
    for ( int i = 0;
    i < n;
    i ++ ) {
      if ( a [ i ] == 0 ) {
        count_zero ++;
        continue;
      }
      if ( a [ i ] < 0 ) {
        count_neg ++;
        max_neg = max ( max_neg, a [ i ] );
      }
      prod = prod * a [ i ];
    }
    if ( count_zero == n ) return 0;
    if ( count_neg & 1 ) {
      if ( count_neg == 1 && count_zero > 0 && count_zero + count_neg == n ) return 0;
      prod = prod / max_neg;
    }
    return prod;
  }
question_info.test_list: [{"idx": 0, "outputs": 1364, "inputs": {"a": [22, 62, 97], "n": 2}}, {"idx": 1, "outputs": 1, "inputs": {"a": [0, 0, 0, 0, 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, 1, 1, 1, 1, 1, 1, 1, 1], "n": 43}}, {"idx": 2, "outputs": 510537135542353920, "inputs": {"a": [-92, -78, -74, -72, -70, -66, -46, -44, -42, -34, -32, -30, -10, 18, 30, 34, 56, 64, 66], "n": 10}}, {"idx": 3, "outputs": 1, "inputs": {"a": [0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0], "n": 16}}, {"idx": 4, "outputs": 7895685600, "inputs": {"a": [1, 2, 3, 18, 20, 33, 38, 53, 55, 56, 67, 80, 83, 87, 90, 97, 98], "n": 9}}, {"idx": 5, "outputs": 1, "inputs": {"a": [0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], "n": 11}}]
question_info.entry_cls_name: Solution
question_info.test_code: 
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function convertToString(value: any): string{
      return JSON.stringify(value, function (key, val) {
          if (val instanceof Set) {
              return Array.from(val);
          } return val;});
  }
  
  function validateSolution(actual: number, expected: number): boolean {
      return convertToString(actual) === convertToString(expected);
  }
  
  function driver(a: Array<number>, n: number, expected:number): string {
      try{
          if (validateSolution(PLACEHOLDER_FN_NAME(a, n),expected)){
              return "PASSED";
          }
          return "FAILED";
      } catch (error) {
        return error.name;
      }
      
  }
      
  function main(){
    let result = '';
    result = driver([22, 62, 97], 2, 1364);
    console.log(`TEST-0...${result}`);
  
    result = driver([0, 0, 0, 0, 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, 1, 1, 1, 1, 1, 1, 1, 1], 43, 1);
    console.log(`TEST-1...${result}`);
  
    result = driver([-92, -78, -74, -72, -70, -66, -46, -44, -42, -34, -32, -30, -10, 18, 30, 34, 56, 64, 66], 10, 510537135542353920);
    console.log(`TEST-2...${result}`);
  
    result = driver([0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0], 16, 1);
    console.log(`TEST-3...${result}`);
  
    result = driver([1, 2, 3, 18, 20, 33, 38, 53, 55, 56, 67, 80, 83, 87, 90, 97, 98], 9, 7895685600);
    console.log(`TEST-4...${result}`);
  
    result = driver([0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], 11, 1);
    console.log(`TEST-5...${result}`);
  
  };
  
  main();
question_info.extension: ts
question_info.entry_fn_name: maximumProductSubsetArray
question_info.test_case_ids: 0 1 2 3 4 5
question_info.commands: tsc --target es2020 --lib es5,dom,es2015,es2020 __FILENAME__
question_info.commands: node __FILENAME__.js