title: Area Square Circumscribed Circle
signature: pub fn area_square_circumscribed_circle(r: i32) -> i32 {
test_code: use std::collections::HashMap;
  use std::collections::HashSet;
  use std::cmp::*;
  use std::collections::*;
  use std::fmt::*; 
  
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  pub fn validate_solution(actual: i32, expected: i32)->bool{
  return actual==expected
  }
  pub fn driver(r: i32, expected: i32)->String{
      if validate_solution(PLACEHOLDER_FN_NAME(r), expected) {
        return "PASSED".to_string();
      };
      return "FAILED".to_string();
  
  }
  
  fn main() {
      println!("TEST-0...{}", driver(
        14, 
        392
      ));
      
      println!("TEST-1...{}", driver(
        78, 
        12168
      ));
      
      println!("TEST-2...{}", driver(
        45, 
        4050
      ));
      
      println!("TEST-3...{}", driver(
        66, 
        8712
      ));
      
      println!("TEST-4...{}", driver(
        18, 
        648
      ));
      
      println!("TEST-5...{}", driver(
        32, 
        2048
      ));
      
      println!("TEST-6...{}", driver(
        60, 
        7200
      ));
      
      println!("TEST-7...{}", driver(
        16, 
        512
      ));
      
      println!("TEST-8...{}", driver(
        99, 
        19602
      ));
      
      println!("TEST-9...{}", driver(
        65, 
        8450
      ));
      
  }
source_py: def area_square_circumscribed_circle(r):
      return ((2 * r) * r)
source_cpp: int area_square_circumscribed_circle(int r) {
    return ( 2 * r * r );
  }