static int countOddPair ( int A [ ] , int N ) {
  int count = 0 ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) {
    if ( ( A [ i ] % 2 != 1 ) ) {
      count ++ ;
    }
  }
  int evenPairCount = count * ( count - 1 ) / 2 ;
  int totPairs = N * ( N - 1 ) / 2 ;
  return totPairs - evenPairCount ;
}

static int countOddPair ( int A [ ] , int N ) { int count = 0 ; for ( int i = 0 ; i < N ; i ++ ) { if ( ( A [ i ] % 2 != 1 ) ) { count ++ ; } } int evenPairCount = count * ( count - 1 ) / 2 ; int totPairs = N * ( N - 1 ) / 2 ; return totPairs - evenPairCount ; }
(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: (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: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (parenthesized_expression (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)) right: (decimal_integer_literal)))) consequence: (block (expression_statement (update_expression (identifier))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (decimal_integer_literal)))) (return_statement (binary_expression left: (identifier) right: (identifier)))))