Package g1801_1900.s1881_maximum_value_after_insertion

Class Solution

java.lang.Object
g1801_1900.s1881_maximum_value_after_insertion.Solution
public class Solution extends java.lang.Object
1881 - Maximum Value after Insertion.

Medium

You are given a very large integer n, represented as a string, and an integer digit x. The digits in n and the digit x are in the inclusive range [1, 9], and n may represent a negative number.

You want to maximize n ’s numerical value by inserting x anywhere in the decimal representation of n. You cannot insert x to the left of the negative sign.

  • For example, if n = 73 and x = 6, it would be best to insert it between 7 and 3, making n = 763.
  • If n = -55 and x = 2, it would be best to insert it before the first 5, making n = -255.

Return a string representing the maximum value of n_ after the insertion_.

Example 1:

Input: n = “99”, x = 9

Output: “999”

Explanation: The result is the same regardless of where you insert 9.

Example 2:

Input: n = “-13”, x = 2

Output: “-123”

Explanation: You can make n one of {-213, -123, -132}, and the largest of those three is -123.

Constraints:

  • 1 <= n.length <= 105
  • 1 <= x <= 9
  • The digits in n are in the range [1, 9].
  • n is a valid representation of an integer.
  • In the case of a negative n, it will begin with '-'.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    java.lang.String
    maxValue(java.lang.String n, int x)
     

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • maxValue

      public java.lang.String maxValue(java.lang.String n, int x)