static int countSolutions ( int n ) {
  int x = 0 , yCount , res = 0 ;
  for ( yCount = 0 ;
  yCount * yCount < n ;
  yCount ++ ) ;
  while ( yCount != 0 ) {
    res += yCount ;
    x ++ ;
    while ( yCount != 0 && ( x * x + ( yCount - 1 ) * ( yCount - 1 ) >= n ) ) yCount -- ;
  }
  return res ;
}

static int countSolutions ( int n ) { int x = 0 , yCount , res = 0 ; for ( yCount = 0 ; yCount * yCount < n ; yCount ++ ) ; while ( yCount != 0 ) { res += yCount ; x ++ ; while ( yCount != 0 && ( x * x + ( yCount - 1 ) * ( yCount - 1 ) >= n ) ) yCount -- ; } return res ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (for_statement init: (assignment_expression left: (identifier) right: (decimal_integer_literal)) condition: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (identifier)) update: (update_expression (identifier))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))) (expression_statement (update_expression (identifier))) (while_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))) right: (identifier))))) body: (expression_statement (update_expression (identifier)))))) (return_statement (identifier))))