static int solve ( int [ ] array , int size ) {
  int operations = 0 ;
  for ( int i = 0 ;
  i < size - 1 ;
  i ++ ) {
    if ( parity ( array [ i ] ) == parity ( array [ i + 1 ] ) ) {
      operations ++ ;
      if ( i + 2 < size ) {
        int pari1 = parity ( array [ i ] ) ;
        int pari2 = parity ( array [ i + 2 ] ) ;
        if ( pari1 == pari2 ) {
          if ( pari1 == 0 ) array [ i + 1 ] = 1 ;
          else if ( pari1 == 1 ) array [ i + 1 ] = 0 ;
          else array [ i + 1 ] = 1 ;
        }
        else {
          if ( ( pari1 == 0 && pari2 == 1 ) || ( pari1 == 1 && pari2 == 0 ) ) array [ i + 1 ] = 2 ;
          if ( ( pari1 == 1 && pari2 == 2 ) || ( pari1 == 2 && pari2 == 1 ) ) array [ i + 1 ] = 0 ;
          if ( ( pari1 == 2 && pari2 == 0 ) || ( pari1 == 0 && pari2 == 2 ) ) array [ i + 1 ] = 1 ;
        }
      }
    }
  }
  return operations ;
}

static int solve ( int [ ] array , int size ) { int operations = 0 ; for ( int i = 0 ; i < size - 1 ; i ++ ) { if ( parity ( array [ i ] ) == parity ( array [ i + 1 ] ) ) { operations ++ ; if ( i + 2 < size ) { int pari1 = parity ( array [ i ] ) ; int pari2 = parity ( array [ i + 2 ] ) ; if ( pari1 == pari2 ) { if ( pari1 == 0 ) array [ i + 1 ] = 1 ; else if ( pari1 == 1 ) array [ i + 1 ] = 0 ; else array [ i + 1 ] = 1 ; } else { if ( ( pari1 == 0 && pari2 == 1 ) || ( pari1 == 1 && pari2 == 0 ) ) array [ i + 1 ] = 2 ; if ( ( pari1 == 1 && pari2 == 2 ) || ( pari1 == 2 && pari2 == 1 ) ) array [ i + 1 ] = 0 ; if ( ( pari1 == 2 && pari2 == 0 ) || ( pari1 == 0 && pari2 == 2 ) ) array [ i + 1 ] = 1 ; } } } } return operations ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (integral_type) dimensions: (dimensions)) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (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: (method_invocation name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier)))) right: (method_invocation name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))))) consequence: (block (expression_statement (update_expression (identifier))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (identifier))) consequence: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal))) alternative: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)))))) alternative: (block (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) consequence: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) consequence: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) consequence: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)))))))))))) (return_statement (identifier))))