title: Count Fibonacci Numbers Given Range Log Time
signature: fun countFibonacciNumbersGivenRangeLogTime(low: Int, high: Int): Int {
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(76, 43, 0)
      println("TEST-0...${result}")
      
      result = driver(96, 52, 0)
      println("TEST-1...${result}")
      
      result = driver(19, 79, 3)
      println("TEST-2...${result}")
      
      result = driver(36, 2, 0)
      println("TEST-3...${result}")
      
      result = driver(60, 11, 0)
      println("TEST-4...${result}")
      
      result = driver(20, 15, 0)
      println("TEST-5...${result}")
      
      result = driver(76, 4, 0)
      println("TEST-6...${result}")
      
      result = driver(63, 93, 1)
      println("TEST-7...${result}")
      
      result = driver(2, 25, 6)
      println("TEST-8...${result}")
      
      result = driver(41, 39, 0)
      println("TEST-9...${result}")
      
          
  }
  
  main()
source_py: def count_fibonacci_numbers_given_range_log_time(low, high):
      (f1, f2, f3) = (0, 1, 1)
      result = 0
      while (f1 <= high):
          if (f1 >= low):
              result += 1
          f1 = f2
          f2 = f3
          f3 = (f1 + f2)
      return result
source_cpp: int count_fibonacci_numbers_given_range_log_time(int low, int high) {
    int f1 = 0, f2 = 1, f3 = 1;
    int result = 0;
    while ( f1 <= high ) {
      if ( f1 >= low ) result ++;
      f1 = f2;
      f2 = f3;
      f3 = f1 + f2;
    }
    return result;
  }