Segtree Doubt

Revision en1, by CP_Sucks, 2020-02-25 21:53:35

In a recent Div3 F : https://codeforces.com/contest/1311/problem/F

i made a submission with segtree of size 4*(number of distinct velocity) https://codeforces.com/contest/1311/submission/71877885

it got RE

Then i made segtree of size max it can go i.e 1e6 and it AC https://codeforces.com/contest/1311/submission/71878460

Can someone tell why 4*size is not enough in this case.

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en1 English CP_Sucks 2020-02-25 21:53:35 405 Initial revision (published)