Ninja and Substrings Problem Statement

Ninja has to determine all the distinct substrings of size two that can be formed from a given string 'STR' comprising only lowercase alphabetic characters. These substrings must appear as contiguous sequences in 'STR'.

Example:

Input:

"abcd"

Output:

["ab", "bc", "cd"]

Input:

The first line contains a single integer 'T' representing the number of test cases. The next 'T' lines each contain a string 'STR'.

Output:

For each test case, output all unique contiguous substrings of size two from 'STR'. Each test case result should be presented on a new line.

Constraints:

1

Question

Ninja and Substrings Problem Statement

Ninja has to determine all the distinct substrings of size two that can be formed from a given string 'STR' comprising only lowercase alphabetic characters. These substrings must appear as contiguous sequences in 'STR'.

Example:

Input:

"abcd"

Output:

["ab", "bc", "cd"]

Input:

The first line contains a single integer 'T' representing the number of test cases. The next 'T' lines each contain a string 'STR'.

Output:

For each test case, output all unique contiguous substrings of size two from 'STR'. Each test case result should be presented on a new line.

Constraints:

1 <= T <= 5*10³
2 <= |STR| <= 10³
Time limit: 1 sec

Note:

You are not required to print anything; it has been handled for you internally.

Accepted Answer

Find all unique contiguous substrings of size two from a given string.

Iterate through the string and extract substrings of size two
Use a set to store unique substrings
Return the set as an array of strings

Accepted Answer

For each case case,return all different substring of size two chat appear in S, TR,contiguous substring

Accepted Answer

For each case case,return all different substring of size two chat appear in S, TR,contiguous substring

Ninja and Substrings Problem Statement

Example:

Input:

Output:

Input:

Output:

Constraints:

Note:

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