title: Count Factorial Numbers In A Given Range
signature: fun countFactorialNumbersInAGivenRange(low: Int, high: Int): Int {
source_py: def count_factorial_numbers_in_a_given_range(low, high):
      fact = 1
      x = 1
      while (fact < low):
          fact = (fact * x)
          x += 1
      res = 0
      while (fact <= high):
          res += 1
          fact = (fact * x)
          x += 1
      return res
source_cpp: int count_factorial_numbers_in_a_given_range(int low, int high) {
    int fact = 1, x = 1;
    while ( fact < low ) {
      fact = fact * x;
      x ++;
    }
    int res = 0;
    while ( fact <= high ) {
      res ++;
      fact = fact * x;
      x ++;
    }
    return res;
  }
question_info.test_list: [{"idx": 0, "outputs": 0, "inputs": {"low": 57, "high": 79}}, {"idx": 1, "outputs": 0, "inputs": {"low": 57, "high": 21}}, {"idx": 2, "outputs": 0, "inputs": {"low": 31, "high": 37}}, {"idx": 3, "outputs": 0, "inputs": {"low": 62, "high": 87}}, {"idx": 4, "outputs": 0, "inputs": {"low": 49, "high": 98}}, {"idx": 5, "outputs": 0, "inputs": {"low": 82, "high": 76}}, {"idx": 6, "outputs": 0, "inputs": {"low": 31, "high": 45}}, {"idx": 7, "outputs": 2, "inputs": {"low": 5, "high": 52}}, {"idx": 8, "outputs": 0, "inputs": {"low": 76, "high": 43}}, {"idx": 9, "outputs": 0, "inputs": {"low": 55, "high": 6}}]
question_info.extension: kts
question_info.test_code: package main
  
  import kotlin.text.*
  import kotlin.math.*
  
  
  // SOLUTION CODE
  // ===================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE
  // ===================================
  fun validateSolution(actual:Int, expected:Int):Boolean{
    return actual.equals(expected)
  }
  fun driver(low: Int, high: Int, expected:Int):String {
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME(low, high), expected)) {
                return "PASSED"
        }
        return "FAILED"
      } catch (e: Exception){
        return e::class.simpleName as String
      }
  
  }
  
  fun main() {
      var result: String = ""
      result = driver(57, 79, 0)
      println("TEST-0...${result}")
      
      result = driver(57, 21, 0)
      println("TEST-1...${result}")
      
      result = driver(31, 37, 0)
      println("TEST-2...${result}")
      
      result = driver(62, 87, 0)
      println("TEST-3...${result}")
      
      result = driver(49, 98, 0)
      println("TEST-4...${result}")
      
      result = driver(82, 76, 0)
      println("TEST-5...${result}")
      
      result = driver(31, 45, 0)
      println("TEST-6...${result}")
      
      result = driver(5, 52, 2)
      println("TEST-7...${result}")
      
      result = driver(76, 43, 0)
      println("TEST-8...${result}")
      
      result = driver(55, 6, 0)
      println("TEST-9...${result}")
      
          
  }
  
  main()
question_info.entry_fn_name: countFactorialNumbersInAGivenRange
question_info.entry_cls_name: Solution
question_info.test_case_ids: 0 1 2 3 4 5 6 7 8 9
question_info.commands: kotlinc -script __FILENAME__ -no-reflect -nowarn