Package g1801_1900.s1844_replace_all_digits_with_characters

Class Solution

  • public class Solution
extends Object
    1844 - Replace All Digits with Characters.

    Easy

    You are given a 0-indexed string s that has lowercase English letters in its even indices and digits in its odd indices.

    There is a function shift(c, x), where c is a character and x is a digit, that returns the xth character after c.

    • For example, shift('a', 5) = 'f' and shift('x', 0) = 'x'.

    For every odd index i, you want to replace the digit s[i] with shift(s[i-1], s[i]).

    Return s after replacing all digits. It is guaranteed that shift(s[i-1], s[i]) will never exceed 'z'.

    Example 1:

    Input: s = “a1c1e1”

    Output: “abcdef”

    Explanation: The digits are replaced as follows:

    • s[1] -> shift(‘a’,1) = ‘b’

    • s[3] -> shift(‘c’,1) = ‘d’

    • s[5] -> shift(‘e’,1) = ‘f’

    Example 2:

    Input: s = “a1b2c3d4e”

    Output: “abbdcfdhe”

    Explanation: The digits are replaced as follows:

    • s[1] -> shift(‘a’,1) = ‘b’

    • s[3] -> shift(‘b’,2) = ‘d’

    • s[5] -> shift(‘c’,3) = ‘f’

    • s[7] -> shift(‘d’,4) = ‘h’

    Constraints:

    • 1 <= s.length <= 100
    • s consists only of lowercase English letters and digits.
    • shift(s[i-1], s[i]) <= 'z' for all odd indices i.

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail