Similar Problem to CF Round 1054 (Div. 3) E

Revision en1, by Min_27, 2025-09-25 20:23:15

I noticed that 2149E — Subarrays with Exactly K from the just-finished contest is similar with LeetCode 992 — Subarrays with K Different Integers

The main twist here is that Codeforces adds the extra condition with [l,r] l,r to the LeetCode version.

if you're upsolving E, I'd recommend trying LC 992 first :)

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  Rev. Lang. By When Δ Comment
en2 English Min_27 2025-09-25 20:24:44 6 Tiny change: 'with [l,r]\nl,r to the Le' -> 'with [l,r] to the Le'
en1 English Min_27 2025-09-25 20:23:15 490 Initial revision (published)