title: Check Number Is Perfect Square Using Additionsubtraction
signature: bool checkNumberIsPerfectSquareUsingAdditionsubtraction(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(bool actual, bool expected){
      return actual == expected;
  }
  
  string driver(int n, bool 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(1, true); 
      cout << "TEST-" << 0 << "..."
           <<  result
           << "\n";
  
      result = driver(4, true); 
      cout << "TEST-" << 1 << "..."
           <<  result
           << "\n";
  
      result = driver(9, true); 
      cout << "TEST-" << 2 << "..."
           <<  result
           << "\n";
  
      result = driver(25, true); 
      cout << "TEST-" << 3 << "..."
           <<  result
           << "\n";
  
      result = driver(36, true); 
      cout << "TEST-" << 4 << "..."
           <<  result
           << "\n";
  
      result = driver(3, false); 
      cout << "TEST-" << 5 << "..."
           <<  result
           << "\n";
  
      result = driver(121, true); 
      cout << "TEST-" << 6 << "..."
           <<  result
           << "\n";
  
      result = driver(14, false); 
      cout << "TEST-" << 7 << "..."
           <<  result
           << "\n";
  
      result = driver(17, false); 
      cout << "TEST-" << 8 << "..."
           <<  result
           << "\n";
  
      result = driver(80, false); 
      cout << "TEST-" << 9 << "..."
           <<  result
           << "\n";
  
      return 0;
  }
source_py: def check_number_is_perfect_square_using_additionsubtraction(n):
      i = 1
      the_sum = 0
      while (the_sum < n):
          the_sum += i
          if (the_sum == n):
              return True
          i += 2
      return False
source_cpp: bool check_number_is_perfect_square_using_additionsubtraction(int n) {
    for ( int sum = 0, i = 1;
    sum < n;
    i += 2 ) {
      sum += i;
      if ( sum == n ) return true;
    }
    return false;
  }