g2401_2500.s2457_minimum_addition_to_make_integer_beautiful

Class Solution

java.lang.Object

g2401_2500.s2457_minimum_addition_to_make_integer_beautiful.Solution

public class Solution
extends Object

2457 - Minimum Addition to Make Integer Beautiful.

Medium

You are given two positive integers n and target.

An integer is considered beautiful if the sum of its digits is less than or equal to target.

Return the minimum non-negative integer x such that n + x is beautiful. The input will be generated such that it is always possible to make n beautiful.

Example 1:

Input: n = 16, target = 6

Output: 4

Explanation: Initially n is 16 and its digit sum is 1 + 6 = 7. After adding 4, n becomes 20 and digit sum becomes 2 + 0 = 2. It can be shown that we can not make n beautiful with adding non-negative integer less than 4.

Example 2:

Input: n = 467, target = 6

Output: 33

Explanation: Initially n is 467 and its digit sum is 4 + 6 + 7 = 17. After adding 33, n becomes 500 and digit sum becomes 5 + 0 + 0 = 5. It can be shown that we can not make n beautiful with adding non-negative integer less than 33.

Example 3:

Input: n = 1, target = 1

Output: 0

Explanation: Initially n is 1 and its digit sum is 1, which is already smaller than or equal to target.

Constraints:

• 1 <= n <= 1012
• 1 <= target <= 150
• The input will be generated such that it is always possible to make n beautiful.

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
long	makeIntegerBeautiful(long n, int target)
long	sumOfDigits(long n)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

makeIntegerBeautiful

public long makeIntegerBeautiful(long n,
                                 int target)

sumOfDigits

public long sumOfDigits(long n)