Words - K Selection - 4
easy
1. You are given a word (may have one character repeat more than once). 2. You are given an integer k. 3. You are required to generate and print all ways you can select k characters out of the word. Note -> Use the code snippet and follow the algorithm discussed in question video. The judge can't force you but the intention is to teach a concept. Play in spirit of the question.
Constraints
0 < str.length() < 15 0 < k <= str.length()
Format
Input
Input is managed for you
Output
Check the sample ouput and question video.
Example
Sample Input
aabbbccdde
3
Sample Output
aab
aac
aad
aae
abb
abc
abd
abe
acc
acd
ace
add
ade
bbb
bbc
bbd
bbe
bcc
bcd
bce
bdd
bde
ccd
cce
cdd
cde
dde