Valentine and Queries

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Valentines is coming after Q days and Tappu desperately needs to impress his girlfriend Kannu. In order to test the extent of Tappu's love for her, Kannu gives Tappu a string S[1.....N] of length N . On the i th day of the Q days, she asks him about the number of substrings in the string S[Li...Ri] (both inclusive) which are same when read in forward as well as backward direction. (S[Li.....Ri]

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solution.cppC++17

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