Class Solution

  • All Implemented Interfaces:

    
    public final class Solution
    
                        

    821 - Shortest Distance to a Character\.

    Easy

    Given a string s and a character c that occurs in s, return an array of integers answer where answer.length == s.length and answer[i] is the distance from index i to the closest occurrence of character c in s.

    The distance between two indices i and j is abs(i - j), where abs is the absolute value function.

    Example 1:

    Input: s = "loveleetcode", c = "e"

    Output: 3,2,1,0,1,0,0,1,2,2,1,0

    Explanation: The character 'e' appears at indices 3, 5, 6, and 11 (0-indexed).

    The closest occurrence of 'e' for index 0 is at index 3, so the distance is abs(0 - 3) = 3.

    The closest occurrence of 'e' for index 1 is at index 3, so the distance is abs(1 - 3) = 2.

    For index 4, there is a tie between the 'e' at index 3 and the 'e' at index 5, but the distance is still the same: abs(4 - 3) == abs(4 - 5) = 1.

    The closest occurrence of 'e' for index 8 is at index 6, so the distance is abs(8 - 6) = 2.

    Example 2:

    Input: s = "aaab", c = "b"

    Output: 3,2,1,0

    Constraints:

    • <code>1 <= s.length <= 10<sup>4</sup></code>

    • s[i] and c are lowercase English letters.

    • It is guaranteed that c occurs at least once in s.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
    • Field Summary

      Fields 
      Modifier and Type Field Description
    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()
    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
    • Method Summary

      Modifier and Type Method Description
      final IntArray shortestToChar(String s, Character c)
      • Methods inherited from class java.lang.Object

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