1385E. Directing Edges
Gold I
ํ•ด ๊ตฌ์„ฑํ•˜๊ธฐ๊นŠ์ด ์šฐ์„  ํƒ์ƒ‰๊ทธ๋ž˜ํ”„ ์ด๋ก ๋ฐฉํ–ฅ ๋น„์ˆœํ™˜ ๊ทธ๋ž˜ํ”„์œ„์ƒ ์ •๋ 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‘