title: Pizza Cut Problem Circle Division Lines
signature: fun pizzaCutProblemCircleDivisionLines(n: 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(n: Int, expected:Int):String {
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME(n), expected)) {
                return "PASSED"
        }
        return "FAILED"
      } catch (e: Exception){
        return e::class.simpleName as String
      }
  
  }
  
  fun main() {
      var result: String = ""
      result = driver(46, 1082)
      println("TEST-0...${result}")
      
      result = driver(68, 2347)
      println("TEST-1...${result}")
      
      result = driver(4, 11)
      println("TEST-2...${result}")
      
      result = driver(12, 79)
      println("TEST-3...${result}")
      
      result = driver(56, 1597)
      println("TEST-4...${result}")
      
      result = driver(14, 106)
      println("TEST-5...${result}")
      
      result = driver(81, 3322)
      println("TEST-6...${result}")
      
      result = driver(29, 436)
      println("TEST-7...${result}")
      
      result = driver(26, 352)
      println("TEST-8...${result}")
      
      result = driver(40, 821)
      println("TEST-9...${result}")
      
          
  }
  
  main()
source_py: def pizza_cut_problem_circle_division_lines(n):
      return int((1 + ((n * (n + 1)) / 2)))
source_cpp: int pizza_cut_problem_circle_division_lines(int n) {
    return 1 + n * ( n + 1 ) / 2;
  }