public static int min_noOf_operation ( int arr [ ] , int n , int k ) {
  int noOfSubtraction ;
  int res = 0 ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) {
    noOfSubtraction = 0 ;
    if ( arr [ i ] > arr [ i - 1 ] ) {
      noOfSubtraction = ( arr [ i ] - arr [ i - 1 ] ) / k ;
      if ( ( arr [ i ] - arr [ i - 1 ] ) % k != 0 ) noOfSubtraction ++ ;
      arr [ i ] = arr [ i ] - k * noOfSubtraction ;
    }
    res = res + noOfSubtraction ;
  }
  return res ;
}

public static int min_noOf_operation ( int arr [ ] , int n , int k ) { int noOfSubtraction ; int res = 0 ; for ( int i = 1 ; i < n ; i ++ ) { noOfSubtraction = 0 ; if ( arr [ i ] > arr [ i - 1 ] ) { noOfSubtraction = ( arr [ i ] - arr [ i - 1 ] ) / k ; if ( ( arr [ i ] - arr [ i - 1 ] ) % k != 0 ) noOfSubtraction ++ ; arr [ i ] = arr [ i ] - k * noOfSubtraction ; } res = res + noOfSubtraction ; } return res ; }
(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)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier))) (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 (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))) right: (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))) right: (identifier)) right: (decimal_integer_literal))) consequence: (expression_statement (update_expression (identifier)))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (identifier) right: (identifier))))))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier)))))) (return_statement (identifier))))