Question
谞转讜谉 诇讜讞 讘讙讜讚诇 10×10. 讗讬讬诇讛 专讜爪讛 诇爪讘讜注 讗转 诪砖讘爪讜转 讛诇讜讞 讘讻讞讜诇 讜诇讘谉 (讻诇 诪砖讘爪转 讘爪讘注 诪住讜讬诐),
讻讱 砖讘讻诇 专讬讘讜注 砖诪讜专讻讘 诪-4 诪砖讘爪讜转 讬讛讬讜 讘讚讬讜拽 砖转讬 诪砖讘爪讜转 诇讘谞讜转 讜砖转讬 诪砖讘爪讜转 讻讞讜诇讜转. 讘讻诪讛
讚专讻讬诐 砖讜谞讜转 讬讻讜诇讛 讗讬讬诇讛 诇爪讘讜注 讗转 讛诪砖讘爪讜转 讘讛转讗诐 诇讻诇诇讬诐 讛讗诇讛?
Difficulty level (1 very easy - 10 very hard): 3
Topics:
Combinatorics
->
Case Analysis / Checking Cases
->
Processes / Procedures
Combinatorics
->
Colorings
- Israeli IMO Selection, 2025, Stage B Question 3
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