Package g2101_2200.s2138_divide_a_string_into_groups_of_size_k

Class Solution

java.lang.Object

g2101_2200.s2138_divide_a_string_into_groups_of_size_k.Solution

public class Solution
extends Object

2138 - Divide a String Into Groups of Size k.

Easy

A string s can be partitioned into groups of size k using the following procedure:

• The first group consists of the first k characters of the string, the second group consists of the next k characters of the string, and so on. Each character can be a part of exactly one group.
• For the last group, if the string does not have k characters remaining, a character fill is used to complete the group.

Note that the partition is done so that after removing the fill character from the last group (if it exists) and concatenating all the groups in order, the resultant string should be s.

Given the string s, the size of each group k and the character fill, return a string array denoting the composition of every group s has been divided into, using the above procedure.

Example 1:

Input: s = “abcdefghi”, k = 3, fill = “x”

Output: [“abc”,“def”,“ghi”]

Explanation:

The first 3 characters “abc” form the first group.

The next 3 characters “def” form the second group.

The last 3 characters “ghi” form the third group.

Since all groups can be completely filled by characters from the string, we do not need to use fill.

Thus, the groups formed are “abc”, “def”, and “ghi”.

Example 2:

Input: s = “abcdefghij”, k = 3, fill = “x”

Output: [“abc”,“def”,“ghi”,“jxx”]

Explanation:

Similar to the previous example, we are forming the first three groups “abc”, “def”, and “ghi”.

For the last group, we can only use the character ‘j’ from the string.

To complete this group, we add ‘x’ twice. Thus, the 4 groups formed are “abc”, “def”, “ghi”, and “jxx”.

Constraints:

• 1 <= s.length <= 100
• s consists of lowercase English letters only.
• 1 <= k <= 100
• fill is a lowercase English letter.

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
String[]	divideString(String s, int k, char fill)

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

divideString

public String[] divideString(String s,
                             int k,
                             char fill)