Count and Say Sequence Problem

The 'Count and Say' sequence is a series of strings in which each consecutive term is generated by describing the previous term. The sequence begins with '1'.

Your task is to determine the sequence after N iterations given a positive integer N.

Example:

Iterations:

1. "1"
2. "11" ('one 1')
3. "21" ('two 1')
4. "1211" ('one 2, one 1')
5. "111221" ('one 1, one 2, two 1')
6. "312211" ('three 1, two 2, one 1')

Input:

T N₁ N₂ ... N_T

Output:

Sequence after N₁ iterations Sequence after N₂ iterations ... Sequence after N_T iterations

Example:

Input:

2 1 4

Output:

1 1211

Constraints:

1

Question

Count and Say Sequence Problem

The 'Count and Say' sequence is a series of strings in which each consecutive term is generated by describing the previous term. The sequence begins with '1'.

Your task is to determine the sequence after N iterations given a positive integer N.

Example:

Iterations:

1. "1"
2. "11" ('one 1')
3. "21" ('two 1')
4. "1211" ('one 2, one 1')
5. "111221" ('one 1, one 2, two 1')
6. "312211" ('three 1, two 2, one 1')

Input:

T
N₁
N₂
...
N_T

Output:

Sequence after N₁ iterations
Sequence after N₂ iterations
...
Sequence after N_T iterations

Example:

Input:

2
1
4

Output:

1
1211

Constraints:

1 <= T <= 10
1 <= N <= 30

Note:

You don't have to print anything, it has already been taken care of. Just implement the given function.

Accepted Answer

Implement a function to determine the 'Count and Say' sequence after N iterations.

Iterate through each term in the sequence, describing the previous term to generate the next term.
Use a count to keep track of consecutive digits and append the count and digit to the result string.
Repeat this process for N iterations to get the sequence after N iterations.

Count and Say Sequence Problem

Example:

Iterations:

Input:

Output:

Example:

Input:

Output:

Constraints:

Note:

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