๋ฌธ-์ถ” ๋กœ๊ณ 
๋ฌธ-์ถ”
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1310F. Bad Cryptography
Ruby II
์ˆ˜ํ•™์ •์ˆ˜๋ก ๋Ÿฐํƒ€์ž„ ์ „์˜ ์ „์ฒ˜๋ฆฌ๋ฐฐํƒ€์  ๋…ผ๋ฆฌํ•ฉ ๊ธฐ์ € (gf(2))๋ถ„ํ•  ์ •๋ณต๋ถ„ํ•  ์ •๋ณต์„ ์ด์šฉํ•œ ๊ฑฐ๋“ญ์ œ๊ณฑ์†Œ์ธ์ˆ˜๋ถ„ํ•ด์ด์‚ฐ ๋กœ๊ทธ+3
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‘