I am studying graphs from galen_colin yt channel and came across these links where he said to do them as practice problems, but when clicking it shows: You are not allowed to view the contest. Ex: https://mirror.codeforces.com/gym/383769/problem/B, https://mirror.codeforces.com/gym/383769/problem/D and more. How do I access these questions? Thanks a lot in advance.
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Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
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link to the problems
the very first section of the page has the invitation link (submission link) https://mirror.codeforces.com/contestInvitation/dec69ff61c53a4d92061070aaf6c4330a2033e4b