title: Count Number Of Occurrences Or Frequency In A Sorted Array
signature: def countNumberOfOccurrencesOrFrequencyInASortedArray(arr: List[Int], n: Int, x: 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, x: Int, expected: Int): String = {
      try {
          if (validateSolution(PLACEHOLDER_FN_NAME(arr, n, x),expected)) {
              "PASSED"
          } else{
              "FAILED"
          }
      }catch{
          case e: Exception => {e.getClass.getName}
      }
  
  }
  object QuestionEvaluator extends App {
  
      println(s"TEST-0...${driver(
        List(16, 18, 24, 27, 34, 36, 41, 43, 43, 52, 59, 76, 86, 87, 90, 91, 94, 96, 98, 98), 14, 43, 
        2    
      )}")   
  
  
      println(s"TEST-1...${driver(
        List(64, 66, -36), 1, 64, 
        1    
      )}")   
  
  
      println(s"TEST-2...${driver(
        List(0, 0, 0), 2, 0, 
        2    
      )}")   
  
  
      println(s"TEST-3...${driver(
        List(9, 85, 34, 43, 70, 96, 44, 7, 27, 33, 34, 5, 91, 84, 76, 45, 20, 37, 15, 37, 20, 24, 13, 49, 74, 13, 50, 81, 81, 66, 23, 36, 91, 80, 61, 15, 96, 70, 90, 25, 16, 62, 75, 63, 6, 65, 38, 12), 43, 5, 
        1    
      )}")   
  
  
      println(s"TEST-4...${driver(
        List(-98, -98, -98, -34, -32, -26, -12, 0, 18, 52, 68, 72), 11, -98, 
        3    
      )}")   
  
  
      println(s"TEST-5...${driver(
        List(1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1), 11, 1, 
        5    
      )}")   
  
  
      println(s"TEST-6...${driver(
        List(1, 3, 6, 6, 10, 12, 15, 16, 21, 22, 23, 29, 33, 37, 40, 40, 43, 52, 55, 59, 64, 65, 71, 72, 80, 83, 86, 86, 88, 88), 29, 40, 
        2    
      )}")   
  
  
      println(s"TEST-7...${driver(
        List(-14, -30, -38, -38, -8, 40, -34, 2, -84, 68, -42, 38, -14, 0, -64, 12, -2, -38, -8, -44, -88, -34, -80, -36, 82, 70, 96, -32, 16, -52, -12, -46, -28, -86, 30, -14, 50, -44, 22, 30, -4, 78, 52), 39, 26, 
        0    
      )}")   
  
  
      println(s"TEST-8...${driver(
        List(1, 1, 1, 1), 2, 3, 
        0    
      )}")   
  
  
      println(s"TEST-9...${driver(
        List(11, 50, 1, 93, 12, 7, 55, 35, 36, 62, 61, 71, 16), 11, 8, 
        0    
      )}")   
  
  }
  
source_py: def count_number_of_occurrences_or_frequency_in_a_sorted_array(arr, n, x):
      res = 0
      for i in range(n):
          if (x == arr[i]):
              res += 1
      return res
source_cpp: int count_number_of_occurrences_or_frequency_in_a_sorted_array(vector<int> arr, int n, int x) {
    int res = 0;
    for ( int i = 0;
    i < n;
    i ++ ) if ( x == arr [ i ] ) res ++;
    return res;
  }