static int maxOperations ( String str ) {
  int i , g , gk , gks ;
  i = g = gk = gks = 0 ;
  for ( i = 0 ;
  i < str . length ( ) ;
  i ++ ) {
    if ( str . charAt ( i ) == 'g' ) {
      g ++ ;
    }
    else if ( str . charAt ( i ) == 'k' ) {
      if ( g > 0 ) {
        g -- ;
        gk ++ ;
      }
    }
    else if ( str . charAt ( i ) == 's' ) {
      if ( gk > 0 ) {
        gk -- ;
        gks ++ ;
      }
    }
  }
  return gks ;
}

static int maxOperations ( String str ) { int i , g , gk , gks ; i = g = gk = gks = 0 ; for ( i = 0 ; i < str . length ( ) ; i ++ ) { if ( str . charAt ( i ) == ' g ' ) { g ++ ; } else if ( str . charAt ( i ) == ' k ' ) { if ( g > 0 ) { g -- ; gk ++ ; } } else if ( str . charAt ( i ) == ' s ' ) { if ( gk > 0 ) { gk -- ; gks ++ ; } } } return gks ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (assignment_expression left: (identifier) right: (assignment_expression left: (identifier) right: (assignment_expression left: (identifier) right: (decimal_integer_literal)))))) (for_statement init: (assignment_expression left: (identifier) right: (decimal_integer_literal)) condition: (binary_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal))) consequence: (block (expression_statement (update_expression (identifier)))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal))) consequence: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (update_expression (identifier)))))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal))) consequence: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (update_expression (identifier))))))))))) (return_statement (identifier))))