java.lang.Object
g1201_1300.s1208_get_equal_substrings_within_budget.Solution

public class Solution extends java.lang.Object
1208 - Get Equal Substrings Within Budget.

Medium

You are given two strings s and t of the same length and an integer maxCost.

You want to change s to t. Changing the ith character of s to ith character of t costs |s[i] - t[i]| (i.e., the absolute difference between the ASCII values of the characters).

Return the maximum length of a substring of s that can be changed to be the same as the corresponding substring of t with a cost less than or equal to maxCost. If there is no substring from s that can be changed to its corresponding substring from t, return 0.

Example 1:

Input: s = “abcd”, t = “bcdf”, maxCost = 3

Output: 3

Explanation: “abc” of s can change to “bcd”. That costs 3, so the maximum length is 3.

Example 2:

Input: s = “abcd”, t = “cdef”, maxCost = 3

Output: 1

Explanation: Each character in s costs 2 to change to character in t, so the maximum length is 1.

Example 3:

Input: s = “abcd”, t = “acde”, maxCost = 0

Output: 1

Explanation: You cannot make any change, so the maximum length is 1.

Constraints:

  • 1 <= s.length <= 105
  • t.length == s.length
  • 0 <= maxCost <= 106
  • s and t consist of only lowercase English letters.
  • Constructor Summary

    Constructors
    Constructor
    Description
     
  • Method Summary

    Modifier and Type
    Method
    Description
    int
    equalSubstring(java.lang.String s, java.lang.String t, int maxCost)
     

    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

    • equalSubstring

      public int equalSubstring(java.lang.String s, java.lang.String t, int maxCost)