title: Maximum Points Intersection N Circles
signature: class Solution {
  
      public Integer maximumPointsIntersectionNCircles(Integer n) {
test_code: import static java.util.Map.entry;  
  import java.util.*;
  import java.lang.*;
  // TESTING CODE 
  // ============================================
  class QuestionEvaluator {
      public static String validateSolution(Integer n, Integer expected){
          try{
              Driver driver = new Driver();
              if (driver.run(n,expected)){
                  return "PASSED";
              }
              return "FAILED";
              
          } catch (Exception exception_obj){
              return exception_obj.getClass().getSimpleName();
          }
  
      }
      public static void main(String[] args) {
          String result;
          result = validateSolution(30, 870);
          System.out.println(String.format("%s%s","TEST-0...",result));    
      
          result = validateSolution(25, 600);
          System.out.println(String.format("%s%s","TEST-1...",result));    
      
          result = validateSolution(69, 4692);
          System.out.println(String.format("%s%s","TEST-2...",result));    
      
          result = validateSolution(39, 1482);
          System.out.println(String.format("%s%s","TEST-3...",result));    
      
          result = validateSolution(14, 182);
          System.out.println(String.format("%s%s","TEST-4...",result));    
      
          result = validateSolution(60, 3540);
          System.out.println(String.format("%s%s","TEST-5...",result));    
      
          result = validateSolution(89, 7832);
          System.out.println(String.format("%s%s","TEST-6...",result));    
      
          result = validateSolution(27, 702);
          System.out.println(String.format("%s%s","TEST-7...",result));    
      
          result = validateSolution(29, 812);
          System.out.println(String.format("%s%s","TEST-8...",result));    
      
          result = validateSolution(29, 812);
          System.out.println(String.format("%s%s","TEST-9...",result));    
      
      }
  }
  
  class Driver{
      public boolean run(Integer n, Integer expected){
  
          PLACEHOLDER_CLS_NAME sol = new PLACEHOLDER_CLS_NAME();
          return validateSolution(sol.PLACEHOLDER_FN_NAME(n),expected);
      }
      
      public boolean validateSolution(Integer actual, Integer expected){
          return actual.equals(expected);
      }
  }
  
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
source_py: def maximum_points_intersection_n_circles(n):
      return (n * (n - 1))
source_cpp: int maximum_points_intersection_n_circles(int n) {
    return n * ( n - 1 );
  }