All N Length Strings from Given String of Length K

Objective: Print All N Length Strings from Given String of Length K where characters can appear multiple time.

Example:

String k = "ALGO"
N=2

Result:
AA LA GA OA AL LL GL OL AG LG GG OG AO LO GO OO

Approach:

This problem is quite similar to Print All N Length Strings from Given Number K.

• Loop through i = 1 to K.
• Add k[i] to the result Array, which is the size N and make a recursive call to (N-1).
• Base case: when n becomes 0 (means array is full).
• See the code for better explanation.

Code:Run This Code

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Output:

AA LA GA OA AL LL GL OL AG LG GG OG AO LO GO OO