title: Pizza Cut Problem Circle Division Lines
signature: def pizzaCutProblemCircleDivisionLines(n: 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(n: Int, expected: Int): String = {
      try {
          if (validateSolution(PLACEHOLDER_FN_NAME(n),expected)) {
              "PASSED"
          } else{
              "FAILED"
          }
      }catch{
          case e: Exception => {e.getClass.getName}
      }
  
  }
  object QuestionEvaluator extends App {
  
      println(s"TEST-0...${driver(
        46, 
        1082    
      )}")   
  
  
      println(s"TEST-1...${driver(
        68, 
        2347    
      )}")   
  
  
      println(s"TEST-2...${driver(
        4, 
        11    
      )}")   
  
  
      println(s"TEST-3...${driver(
        12, 
        79    
      )}")   
  
  
      println(s"TEST-4...${driver(
        56, 
        1597    
      )}")   
  
  
      println(s"TEST-5...${driver(
        14, 
        106    
      )}")   
  
  
      println(s"TEST-6...${driver(
        81, 
        3322    
      )}")   
  
  
      println(s"TEST-7...${driver(
        29, 
        436    
      )}")   
  
  
      println(s"TEST-8...${driver(
        26, 
        352    
      )}")   
  
  
      println(s"TEST-9...${driver(
        40, 
        821    
      )}")   
  
  }
  
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;
  }