static int maxProdSum ( int arr [ ] , int n ) {
  int [ ] prefixArraySum = new int [ n ] ;
  int maxProduct = 0 ;
  prefixArraySum [ 0 ] = arr [ 0 ] ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) {
    prefixArraySum [ i ] = prefixArraySum [ i - 1 ] + arr [ i ] ;
  }
  for ( int i = 0 ;
  i < n - 1 ;
  i ++ ) {
    int leftArraySum = prefixArraySum [ i ] ;
    int rightArraySum = prefixArraySum [ n - 1 ] - prefixArraySum [ i ] ;
    int k = leftArraySum * rightArraySum ;
    if ( k > maxProduct ) {
      maxProduct = k ;
    }
  }
  return maxProduct ;
}

static int maxProdSum ( int arr [ ] , int n ) { int [ ] prefixArraySum = new int [ n ] ; int maxProduct = 0 ; prefixArraySum [ 0 ] = arr [ 0 ] ; for ( int i = 1 ; i < n ; i ++ ) { prefixArraySum [ i ] = prefixArraySum [ i - 1 ] + arr [ i ] ; } for ( int i = 0 ; i < n - 1 ; i ++ ) { int leftArraySum = prefixArraySum [ i ] ; int rightArraySum = prefixArraySum [ n - 1 ] - prefixArraySum [ i ] ; int k = leftArraySum * rightArraySum ; if ( k > maxProduct ) { maxProduct = k ; } } return maxProduct ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (identifier))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (array_access array: (identifier) index: (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: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (array_access array: (identifier) index: (identifier))))))) (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 (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (array_access array: (identifier) index: (identifier)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (array_access array: (identifier) index: (identifier))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))))))) (return_statement (identifier))))