title: Number Unique Rectangles Formed Using N Unit Squares
signature: function numberUniqueRectanglesFormedUsingNUnitSquares($n) {
test_code: <?php
  
  
  // SOLUTION CODE 
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function validateSolution($actual, $expected){
      return serialize($actual) == serialize($expected);
  }
  
  function driver($n, $expected){
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME($n), $expected)){
          return "PASSED";
        }
        return "FAILED";
      }
      catch (Exception $exception_obj) {
        return get_class($exception_obj);
      }
  }
  
  function main(){
      printf("TEST-0...%s\n",driver(
        34, 
        66));
      
      printf("TEST-1...%s\n",driver(
        49, 
        104));
      
      printf("TEST-2...%s\n",driver(
        41, 
        83));
      
      printf("TEST-3...%s\n",driver(
        17, 
        28));
      
      printf("TEST-4...%s\n",driver(
        67, 
        151));
      
      printf("TEST-5...%s\n",driver(
        38, 
        76));
      
      printf("TEST-6...%s\n",driver(
        59, 
        128));
      
      printf("TEST-7...%s\n",driver(
        64, 
        144));
      
      printf("TEST-8...%s\n",driver(
        61, 
        135));
      
      printf("TEST-9...%s\n",driver(
        58, 
        127));
      
  }
  
  main();
  ?>
source_py: def number_unique_rectangles_formed_using_n_unit_squares(n):
      ans = 0
      for length in range(1, (int(math.sqrt(n)) + 1)):
          height = length
          while ((height * length) <= n):
              ans += 1
              height += 1
      return ans
source_cpp: int number_unique_rectangles_formed_using_n_unit_squares(int n) {
    int ans = 0;
    for ( int length = 1;
    length <= sqrt ( n );
    ++ length ) for ( int height = length;
    height * length <= n;
    ++ height ) ans ++;
    return ans;
  }