What is the diffence between C++20, C++17 and C++14

Правка en1, от ExpectoPatronum, 2021-10-17 17:56:07

Today in contest cf round 749, I have FST in problem C (WA on test 16 in C++20) 132242048. After contest I have no change in my code and I submit in C++17 (WA on test 19) 132266690 and in C++14 and got accepted 132266932. What is the magic here ! Pls explain to me ! Thanks.

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en1 Английский ExpectoPatronum 2021-10-17 17:56:07 364 Initial revision (published)