what is the meaning of

subtask 1 (20 points):1 ≤ N ≤ 10

Subtask 2 (80 points):1 ≤ N ≤ 10^5

where N is coming or being used, as question is only about T

what is the meaning of

subtask 1 (20 points):1 ≤ N ≤ 10

Subtask 2 (80 points):1 ≤ N ≤ 10^5

where N is coming or being used, as question is only about T

As mentioned in first line itself, N is the length of string sequence. There can be two type of testcases:- Subtask1 and Subtask2. If your program will pass the testcases of type 1 i.e of length 10 then you will get 20 points and if your program passes the testcases of type 2 i.e of length upto 10^5 then you will get 80 points.

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It means you have a *subtask 1*, in which the string is of maximum **length 20** (characters) and in *subtask 2* you can have string with maximum length 1,00,000 (10^5).

You will get **20 points** if you solve all test cases **T** in **subtask 1** and **80 points** for solving all test cases **T** in **subtask 2**.

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