0 votes 0 votes Can somebody brief description about this topic(means formula or link to study). Actually this question is asked in TOC test, but looking more like mathematics part. Combinatory test-series engineering-mathematics + – Overflow04 asked Oct 30, 2022 Overflow04 344 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply Shoto commented Oct 30, 2022 i edited by Shoto Oct 30, 2022 reply Follow Share It has some essence of combinatorics too.They are asking number of non-empty strings possible with atmost length of 3. 2 votes 2 votes Abhrajyoti00 commented Oct 30, 2022 reply Follow Share @Aditya_ Exactly the method to be followed. 0 votes 0 votes Please log in or register to add a comment.
