title: Circle Lattice Points
signature: fun circleLatticePoints(r: 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(r: Int, expected:Int):String {
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME(r), expected)) {
                return "PASSED"
        }
        return "FAILED"
      } catch (e: Exception){
        return e::class.simpleName as String
      }
  
  }
  
  fun main() {
      var result: String = ""
      result = driver(34, 12)
      println("TEST-0...${result}")
      
      result = driver(56, 4)
      println("TEST-1...${result}")
      
      result = driver(90, 12)
      println("TEST-2...${result}")
      
      result = driver(47, 4)
      println("TEST-3...${result}")
      
      result = driver(36, 4)
      println("TEST-4...${result}")
      
      result = driver(63, 4)
      println("TEST-5...${result}")
      
      result = driver(21, 4)
      println("TEST-6...${result}")
      
      result = driver(76, 4)
      println("TEST-7...${result}")
      
      result = driver(18, 4)
      println("TEST-8...${result}")
      
      result = driver(75, 20)
      println("TEST-9...${result}")
      
          
  }
  
  main()
source_py: def circle_lattice_points(r):
      if (r <= 0):
          return 0
      result = 4
      for x in range(1, r):
          ySquare = ((r * r) - (x * x))
          y = int(math.sqrt(ySquare))
          if ((y * y) == ySquare):
              result += 4
      return result
source_cpp: int circle_lattice_points(int r) {
    if ( r <= 0 ) return 0;
    int result = 4;
    for ( int x = 1;
    x < r;
    x ++ ) {
      int ySquare = r * r - x * x;
      int y = sqrt ( ySquare );
      if ( y * y == ySquare ) result += 4;
    }
    return result;
  }