static boolean canPlace ( int k , int i ) {
  for ( int j = 1 ;
  j <= k - 1 ;
  j ++ ) {
    if ( arr [ j ] == i || ( Math . abs ( arr [ j ] - i ) == Math . abs ( j - k ) ) ) {
      return false ;
    }
  }
  return true ;
}

static boolean canPlace ( int k , int i ) { for ( int j = 1 ; j <= k - 1 ; j ++ ) { if ( arr [ j ] == i || ( Math . abs ( arr [ j ] - i ) == Math . abs ( j - k ) ) ) { return false ; } } return true ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier)) right: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier)))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)))))))) consequence: (block (return_statement (false)))))) (return_statement (true))))