static int minSwaps ( int arr [ ] , int n ) {
  int noOfOnes = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( arr [ i ] == 1 ) noOfOnes ++ ;
  }
  int x = noOfOnes ;
  int maxOnes = Integer . MIN_VALUE ;
  int preCompute [ ] = new int [ n ] ;
  if ( arr [ 0 ] == 1 ) preCompute [ 0 ] = 1 ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) {
    if ( arr [ i ] == 1 ) {
      preCompute [ i ] = preCompute [ i - 1 ] + 1 ;
    }
    else preCompute [ i ] = preCompute [ i - 1 ] ;
  }
  for ( int i = x - 1 ;
  i < n ;
  i ++ ) {
    if ( i == ( x - 1 ) ) noOfOnes = preCompute [ i ] ;
    else noOfOnes = preCompute [ i ] - preCompute [ i - x ] ;
    if ( maxOnes < noOfOnes ) maxOnes = noOfOnes ;
  }
  int noOfZeroes = x - maxOnes ;
  return noOfZeroes ;
}

static int minSwaps ( int arr [ ] , int n ) { int noOfOnes = 0 ; for ( int i = 0 ; i < n ; i ++ ) { if ( arr [ i ] == 1 ) noOfOnes ++ ; } int x = noOfOnes ; int maxOnes = Integer . MIN_VALUE ; int preCompute [ ] = new int [ n ] ; if ( arr [ 0 ] == 1 ) preCompute [ 0 ] = 1 ; for ( int i = 1 ; i < n ; i ++ ) { if ( arr [ i ] == 1 ) { preCompute [ i ] = preCompute [ i - 1 ] + 1 ; } else preCompute [ i ] = preCompute [ i - 1 ] ; } for ( int i = x - 1 ; i < n ; i ++ ) { if ( i == ( x - 1 ) ) noOfOnes = preCompute [ i ] ; else noOfOnes = preCompute [ i ] - preCompute [ i - x ] ; if ( maxOnes < noOfOnes ) maxOnes = noOfOnes ; } int noOfZeroes = x - maxOnes ; return noOfZeroes ; }
(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 (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal))) consequence: (expression_statement (update_expression (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (field_access object: (identifier) field: (identifier)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (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 (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal))) consequence: (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: (decimal_integer_literal))))) alternative: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal)))))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))) consequence: (expression_statement (assignment_expression left: (identifier) right: (array_access array: (identifier) index: (identifier)))) alternative: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (identifier))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (expression_statement (assignment_expression left: (identifier) right: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (identifier)))) (return_statement (identifier))))