title: Number Non Negative Integral Solutions B C N 1
signature: function number_non_negative_integral_solutions_b_c_n_1(n)
test_code: using Printf
  
  # SOLUTION CODE
  # ============================================
  PLACEHOLDER_CODE_BODY
  
  # TESTING CODE 
  # ============================================
  function validate_solution(actual, expected)
      return actual == expected
  end
  
  function driver(n, expected)
      try
  
          if validate_solution(PLACEHOLDER_FN_NAME(n), expected)
              return "PASSED";
          end
          return "FAILED";
      catch exception_obj
          return string(Base.typename(typeof(exception_obj)).wrapper);
      end
  end
  
  function main()
      
      result = driver(41, 903);
      @printf("TEST-0...%s\n",result);
      
      result = driver(72, 2701);
      @printf("TEST-1...%s\n",result);
      
      result = driver(54, 1540);
      @printf("TEST-2...%s\n",result);
      
      result = driver(75, 2926);
      @printf("TEST-3...%s\n",result);
      
      result = driver(87, 3916);
      @printf("TEST-4...%s\n",result);
      
      result = driver(41, 903);
      @printf("TEST-5...%s\n",result);
      
      result = driver(78, 3160);
      @printf("TEST-6...%s\n",result);
      
      result = driver(80, 3321);
      @printf("TEST-7...%s\n",result);
      
      result = driver(46, 1128);
      @printf("TEST-8...%s\n",result);
      
      result = driver(9, 55);
      @printf("TEST-9...%s\n",result);
      
  end
  
  main()
source_py: def number_non_negative_integral_solutions_b_c_n_1(n):
      return int((((n + 1) * (n + 2)) / 2))
source_cpp: int number_non_negative_integral_solutions_b_c_n_1(int n) {
    return ( ( n + 1 ) * ( n + 2 ) ) / 2;
  }