title: Number Non Negative Integral Solutions B C N 1
signature: int numberNonNegativeIntegralSolutionsBCN1(int n) {
test_code: #include <algorithm>
  #include <assert.h>
  #include <cstdlib>
  #include <iostream>
  #include <map>
  #include <set>
  #include <string>
  #include <tuple> 
  #include <unordered_map>
  #include <vector>
  #include <math.h>
  #include <cmath>
  #include <bits/stdc++.h>
  #include <numeric>
  #include <functional>
  
  using namespace std;
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  bool validateSolution(int actual, int expected){
      return actual == expected;
  }
  
  string driver(int n, int expected){
      try
      {
          if (validateSolution(PLACEHOLDER_FN_NAME(n), expected)){
              return "PASSED";
          }
          return "FAILED";
      }
      catch (const std::overflow_error& exception_obj)
      {
          return typeid(exception_obj).name();
      }
      catch (const std::runtime_error& exception_obj)
      {
          return typeid(exception_obj).name();
      }
      catch (const std::exception& exception_obj)
      {
          return typeid(exception_obj).name();
      }
      catch (...)
      {
          return "UNK_ERROR";
      }
  }
  
  int main() {
      string result = "";
  
      result = driver(41, 903); 
      cout << "TEST-" << 0 << "..."
           <<  result
           << "\n";
  
      result = driver(72, 2701); 
      cout << "TEST-" << 1 << "..."
           <<  result
           << "\n";
  
      result = driver(54, 1540); 
      cout << "TEST-" << 2 << "..."
           <<  result
           << "\n";
  
      result = driver(75, 2926); 
      cout << "TEST-" << 3 << "..."
           <<  result
           << "\n";
  
      result = driver(87, 3916); 
      cout << "TEST-" << 4 << "..."
           <<  result
           << "\n";
  
      result = driver(41, 903); 
      cout << "TEST-" << 5 << "..."
           <<  result
           << "\n";
  
      result = driver(78, 3160); 
      cout << "TEST-" << 6 << "..."
           <<  result
           << "\n";
  
      result = driver(80, 3321); 
      cout << "TEST-" << 7 << "..."
           <<  result
           << "\n";
  
      result = driver(46, 1128); 
      cout << "TEST-" << 8 << "..."
           <<  result
           << "\n";
  
      result = driver(9, 55); 
      cout << "TEST-" << 9 << "..."
           <<  result
           << "\n";
  
      return 0;
  }
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;
  }