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1623D. Robot Cleaner Revisit
Platinum III
๊ตฌํ˜„์ˆ˜ํ•™ํ™•๋ฅ ๋ก ๊ธฐ๋Œ“๊ฐ’์˜ ์„ ํ˜•์„ฑ๊นŠ์ด ์šฐ์„  ํƒ์ƒ‰๋„ˆ๋น„ ์šฐ์„  ํƒ์ƒ‰์‹œ๋ฎฌ๋ ˆ์ด์…˜์ •๋ ฌ
Codeforces

์ด ๋ฌธ์ œ์— ๋Œ€ํ•œ ๊ฐ€์ด๋“œ

์•„์ง ์ž‘์„ฑ๋œ ๊ฐ€์ด๋“œ๊ฐ€ ์—†์Šต๋‹ˆ๋‹ค.

์ด ๋ฌธ์ œ๋ฅผ ํฌํ•จํ•˜๋Š” ๋ฌธ์ œ์ง‘