Codeforces Round 975 (Div. 1, Div. 2)

Revision en15, by TheScrasse, 2024-09-27 20:01:36

Ciao, Codeforces! We're glad to invite you to take part in Codeforces Round 975 (Div. 1) and Codeforces Round 975 (Div. 2), which will start on Sep/27/2024 16:35 (Moscow time). You will be given 6 problems and 2 hours and 30 minutes to solve them in both divisions. Some problems will be divided into subtasks.

UPD: the time has been changed to Sep/27/2024 16:35 (Moscow time), which is different from the time announced before. Please note the unusual starting time.

This round is based on Italian Olympiad in Informatics (OII) 2024.

The problems were authored by lorenzoferrari, wksni and me.

We would like to thank

Score distribution:

  • Div. 1: $$$500 - 750 - 750 - 1500 - (2250 + 750) - (1500 + 1500 + 1500)$$$
  • Div. 2: $$$500 - 1000 - 1750 - 2000 - 2000 - 3000$$$

We hope you'll like the problemset!

Update 1: the editorial is here.

Update 2: congratulations to the winners!

Winners and first solves

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en15 English TheScrasse 2024-09-27 20:01:36 1001
en14 English TheScrasse 2024-09-27 19:05:18 75
en13 English TheScrasse 2024-09-27 15:39:22 9
en12 English TheScrasse 2024-09-27 12:24:05 58 Tiny change: '\n- [user:' -> '\n- [user:Alexdat2000] for Russian translation;\n- [user:'
en11 English TheScrasse 2024-09-25 19:32:38 60
en10 English TheScrasse 2024-09-24 21:01:55 106 Tiny change: 'rent from before. P' -> 'rent from the time announced before. P'
en9 English TheScrasse 2024-09-24 13:59:29 15 Tiny change: ' **2 hours** to sol' -> ' **2 hours and 30 minutes** to sol'
en8 English TheScrasse 2024-09-24 11:59:01 9 Tiny change: ' 1500 - (2000 + 1000) - (1500' -> ' 1500 - (2250 + 750) - (1500'
en7 English TheScrasse 2024-09-24 10:44:49 80
en6 English TheScrasse 2024-09-24 10:23:19 73
en5 English TheScrasse 2024-09-23 11:56:10 27 Tiny change: '024-09-23] for test' -> '024-09-23], [user:Flamire] for test'
en4 English TheScrasse 2024-09-23 00:38:13 29 Tiny change: '024-09-22] for test' -> '024-09-22], [user:jeroenodb] for test'
en3 English TheScrasse 2024-09-22 21:16:16 46 Tiny change: 'sions.\n\nThis r' -> 'sions.\n\n**Note the unusual starting time.**\n\nThis r'
en2 English TheScrasse 2024-09-22 18:21:22 13 Tiny change: ' authored and prepared by [us' -> ' authored by [us'
en1 English TheScrasse 2024-09-22 18:18:17 1417 Initial revision (published)