Webbly's blog

Another problem coincidence
By Webbly, history, 21 month(s) ago, In English

Recently, I was solving AtCoder problems and came across this task https://atcoder.jp/contests/abc125/tasks/abc125_d, that is very similar compared to recent Div.4 E https://mirror.codeforces.com/contest/1791/problem/E

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21 month(s) ago, # |
  Vote: I like it +4 Vote: I do not like it

https://www.codechef.com/problems/CP02

This problem from a small contest from codechef is almost identical to that problem too (that contest was held in 2022), the only difference is the problem 1791E - Отрицательные и положительные is on an 1D array and the codechef problem is on a 2D array.

I think the idea of that kind of problem is easy to think of.

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