title: Area Of A Hexagon
signature: pub fn area_of_a_hexagon(s: f64) -> f64 {
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: f64, expected: f64)->bool{
  return (actual - expected).abs() < 1e-09
  }
  pub fn driver(s: f64, expected: f64)->String{
      if validate_solution(PLACEHOLDER_FN_NAME(s), expected) {
        return "PASSED".to_string();
      };
      return "FAILED".to_string();
  
  }
  
  fn main() {
      println!("TEST-0...{}", driver(
        1772.6589509256596, 
        8163986.207300422
      ));
      
      println!("TEST-1...{}", driver(
        -599.737107809315, 
        934487.9989101035
      ));
      
      println!("TEST-2...{}", driver(
        1074.1765931782, 
        2997804.1448343466
      ));
      
      println!("TEST-3...{}", driver(
        -1182.4087746714795, 
        3632345.696441302
      ));
      
      println!("TEST-4...{}", driver(
        8083.035797247716, 
        169746524.38794258
      ));
      
      println!("TEST-5...{}", driver(
        -6126.414356565494, 
        97513471.98905805
      ));
      
      println!("TEST-6...{}", driver(
        5370.057504189614, 
        74922068.46663411
      ));
      
      println!("TEST-7...{}", driver(
        -6947.020794285176, 
        125386010.4299519
      ));
      
      println!("TEST-8...{}", driver(
        2110.5107873533325, 
        11572495.990484647
      ));
      
      println!("TEST-9...{}", driver(
        -6458.751326919488, 
        108379966.88267714
      ));
      
  }
source_py: def area_of_a_hexagon(s):
      return (((3 * math.sqrt(3)) * (s * s)) / 2)
source_cpp: double area_of_a_hexagon(double s) {
    return ( ( 3 * sqrt ( 3 ) * ( s * s ) ) / 2 );
  }