Problems from AtCoder and Codeforces are both fine, preferably those where the 'Exchange arguments' method is used to optimize greedy algorithms.
Thanks~
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Why doesn't anyone give me any problems? QWQ
https://mirror.codeforces.com/problemset/problem/1793/E
thx
https://mirror.codeforces.com/contest/1914/problem/E2
thk u
https://oj.uz/problem/view/NOI22_gymbadges
thx
https://atcoder.jp/contests/abc366/tasks/abc366_f
lol,I have solved
why?
I'm not very skilled at this, but I find it truly fascinating.
ig errichto has a stream on it check it
thx
this problem is what brought me here : https://mirror.codeforces.com/contest/1203/problem/F1
I suggest you rename the title to "problems on Exchange arguments technique" to make this easier for people searching
thx & I have changed it
Auto comment: topic has been updated by _Tyrue_ (previous revision, new revision, compare).
make a mashup
Exchange arguments is not an optimisation technique? It's a proving method not an algorithm or technique. In any case, a problem which can be proved using this method. https://mirror.codeforces.com/problemset/problem/632/C
thx
You can refer to this blog: https://mirror.codeforces.com/blog/entry/63533
``thx