Good quality USACO Platinum practice problems
Difference between en1 and en2, changed 8 character(s)
I recently got into USACO platinum division and would like to try out lots of high quality problems.  So far, I've completed USACO 2011 to 2019 Gold/Platinum problems.↵
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Newer USACO Problems (2011+ )↵
Problem & Editorials↵
http://www.usaco.org/index.php?page=contests ( 2011 onwards )↵
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**Now, I'm not sure what other problem sets to try. I've compiled possible candidates but want community opinion on quality of the problems from the list to optimize for learning.  (Or suggest some other problem lists that i've missed)↵
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a) ↵
Old USACO problems 2004 to 2011↵
Problems:↵
http://tjsct.wikidot.com/usaco. (2007 to 2011)↵
Editorials (Change Year # for other years)↵
https://contest.usaco.org/OCT04.htm ↵
https://contest.usaco.org/OCT10.htm ↵
https://contest.usaco.org/NOV04.htm ↵
https://contest.usaco.org/NOV10.htm ↵
https://contest.usaco.org/DEC04.htm ↵
https://contest.usaco.org/DEC10.htm ↵
https://contest.usaco.org/JAN05.htm ↵
https://contest.usaco.org/JAN11.htm ↵
https://contest.usaco.org/FEB05.htm ↵
https://contest.usaco.org/FEB11.htm ↵
https://contest.usaco.org/MAR05.htm ↵
https://contest.usaco.org/MAR11.htm ↵
https://contest.usaco.org/OPEN05.htm ↵
https://contest.usaco.org/OPEN11.htm ↵
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b)↵
Old IOI problems↵
https://wcipeg.com/problems↵
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c)↵
Problems from Competitive Programming Handbook↵
https://cses.fi/problemset/↵
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d)↵
Croation IOI↵
https://hsin.hr/coci/↵
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e)↵
CP 3 ProblemSet↵
https://cpbook.net/methodstosolve↵
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Thanks

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  Rev. Lang. By When Δ Comment
en3 English vrooooom 2020-03-06 08:41:17 6 Tiny change: 'issed)**\n****\na) \nOld' -> 'issed)**\n\n\na) \nOld'
en2 English vrooooom 2020-03-06 08:40:23 8
en1 English vrooooom 2020-03-06 08:04:44 1491 Initial revision (published)